- Windows XP
Windows XP Part of the Microsoft Windows family Screenshot of Windows XP Developer Microsoft Corporation Website Windows XP: Homepage Releases Release date RTM: August 24, 2001
Retail: October 25, 2001 [info]
Current version 5.1 (Build 2600: Service Pack 3) (April 21, 2008info])[ Source model Closed source, Shared source License Proprietary commercial software Kernel type Hybrid Update method Windows Update
Windows Server Update Services (WSUS)
System Center Configuration Manager (SCCM)
Platform support IA-32, x86-64 and Itanium Preceded by Windows Me and Windows 2000 Succeeded by Windows Vista Support status Mainstream support Ended on April 14, 2009 Extended support Available until April 8, 2014 for Windows XP with Service Pack 3 and Windows XP x64 Edition with Service Pack 2 Downgrade support Available until January 14, 2020 Further reading
Windows XP is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops and media centers. First released to computer manufacturers on August 24, 2001, it is the second most popular version of Windows, based on installed user base. The name "XP" is short for "eXPerience."
Windows XP, the successor to Windows 2000 and Windows Me, was the first consumer-oriented operating system produced by Microsoft to be built on the Windows NT kernel. Windows XP was released worldwide for retail sale on October 25, 2001, and over 400 million copies were in use in January 2006. Direct OEM and retail sales of Windows XP ceased on June 30, 2008. Microsoft continued to sell Windows XP through their System Builders (smaller OEMs who sell assembled computers) program until January 31, 2009.
The NT-based versions of Windows, which are programmed in C, C++, and assembly, are known for their improved stability and efficiency over the 9x versions of Microsoft Windows. Windows XP presented a significantly redesigned graphical user interface, a change Microsoft promoted as more user-friendly than previous versions of Windows. A new software management facility called Side-by-Side Assembly was introduced to ameliorate the "DLL hell" that plagues 9x versions of Windows. It is also the first version of Windows to use product activation to combat illegal copying.
According to web analytics data generated by W3Schools, from September 2003 to July 2011, Windows XP was the most widely used operating system for accessing the internet. As of October 2011[update], Windows XP market share is at 33.4% after having peaked at 76.1% in January 2007.
- 1 User interface
- 2 New and updated features
- 3 Editions
- 4 Service packs
- 5 System requirements
- 6 Support lifecycle
- 7 License and media types
- 8 See also
- 9 References
- 10 Further reading
- 11 External links
Windows XP featured a new task-based GUI (Graphical user interface). The Start menu and Taskbar were updated and many visual effects were added, including:
- A translucent blue selection rectangle in Windows Explorer
- Drop shadows for icon labels on the desktop
- Task-based sidebars in Explorer windows ("common tasks")
- The ability to group the taskbar buttons of the windows of one application into one button
- The ability to lock the taskbar and other toolbars to prevent accidental changes
- The highlighting of recently added programs on the Start menu
- Shadows under menus (Windows 2000 had shadows under mouse pointers, but not menus)
Windows XP themes Default Blue (Luna) Windows Classic XP Media Center The new start menu design
in the "Energy blue" theme.
The "task grouping" feature introduced in Windows XP
showing both grouped and ungrouped tasks.
Windows XP analyzes the performance impact of visual effects and uses this to determine whether to enable them, so as to prevent the new functionality from consuming excessive additional processing overhead. Users can further customize these settings. Some effects, such as alpha compositing (transparency and fading), are handled entirely by many newer video cards. However, if the video card is not capable of hardware alpha blending, performance can be substantially degraded, and Microsoft recommends the feature should be turned off manually. Windows XP added the ability for Windows to use "Visual Styles" to change the appearance of the user interface. However, visual styles must be cryptographically signed by Microsoft to run. Luna is the name of the new visual style that ships with Windows XP, and is enabled by default for machines with more than 64 MiB of RAM. Luna refers only to one particular visual style, not to all of the new user interface features of Windows XP as a whole. Some users "patch" the uxtheme.dll file that restricts the ability to use visual styles, created by the general public or the user, on Windows XP.
In addition to the included Windows XP themes, there is one previously unreleased theme with a dark blue taskbar and window bars similar to Windows Vista titled "Royale Noir" available as unofficial download. Microsoft officially released a modified version of this theme as the "Zune" theme, to celebrate the launch of its Zune portable media player in November 2006. The differences are only visual with a new glassy look along with a black taskbar instead of dark blue and an orange start button instead of green. Additionally, the Media Center "Energy Blue" theme, which was included in the Media Center editions, is also available to download for use on all Windows XP editions.
The Windows 2000 "classic" interface can be used instead if preferred. Several third party utilities exist that provide hundreds of different visual styles.
New and updated features
Windows XP introduced several new features to the Windows line, including:
- GDI+ graphics subsystem and improved image management and viewing in the shell 
- DirectX 8.1 upgradeable to DirectX 9.0c
- Start Menu and Taskbar improvements
- A number of new features in Windows Explorer including task panes, tiles and filmstrip views, improved sorting and grouping, searching by document categories, customizable infotips, built-in CD burning, AutoPlay, Simple File Sharing and WebDAV mini-redirector.
- Improved imaging features such as Windows Picture and Fax Viewer, improved image handling and thumbnail caching in Explorer
- A number of kernel enhancements and power management improvements 
- Faster start-up, (due to improved Prefetch functions) logon, logoff, hibernation and application launch sequences.
- The ability to discard a newer device driver in favor of the previous one (known as driver rollback) should a driver upgrade not produce desirable results.
- Numerous improvements to increase the system reliability such as improved System Restore, Automated System Recovery, Windows Error Reporting and driver reliability.
- A new, arguably more user-friendly interface, including the framework for developing themes for the desktop environment  and richer icons with alpha transparency
- Hardware support improvements such as USB 2.0, FireWire 800, Windows Image Acquisition, Media Transfer Protocol, DualView for multi-monitors and audio improvements.
- Fast user switching, which allows a user to save the current state and open applications of their desktop and allow another user to log on without losing that information 
- The ClearType font rendering mechanism, which is designed to improve text readability on liquid crystal display (LCD) and similar monitors, especially laptops.
- Remote Assistance and Remote Desktop features, which allow users to connect to a computer running Windows XP from across a network or the Internet and access their applications, files, printers, and devices or request help.
- New networking features  including Windows Firewall, Internet Connection Sharing integration with UPnP, NAT traversal APIs, Quality of Service features, IPv6 and Teredo tunneling, Background Intelligent Transfer Service, extended fax features, network bridging, peer to peer networking, support for most DSL modems, IEEE 802.11 (Wi-Fi) connections with auto configuration and roaming, TAPI 3.1, Bluetooth and networking over FireWire.
- New security features such as Software Restriction Policies, Credential Manager, Encrypting File System improvements, improved certificate services, smart card and PKI support. Windows XP SP2 introduced Data Execution Prevention, Windows Security Center and Attachment Manager.
- Side-by-side assemblies and registration-free COM
- Improved media features in Windows Media format runtime, Windows Media Player, Windows Movie Maker, TV/video capture and playback technologies, Windows Media Encoder and introduction of Windows Media Center
- General improvements to international support such as more locales, languages and scripts, MUI support in Terminal Services, improved IMEs and National Language Support, Text Services Framework
- Handwriting recognition, speech recognition and digital ink support accessible through the Tablet PC Input Panel (TIP) in Windows XP Tablet PC Edition
- Numerous improvements to system administration tools such as Windows Installer, Windows Script Host, Disk Defragmenter, Windows Task Manager, Group Policy, CHKDSK, NTBackup, Microsoft Management Console, Shadow Copy, Registry Editor, Sysprep and WMI 
- Improved application compatibility and shims compared to Windows 2000
- Updated accessories and games.
- Improvements to IntelliMirror features such as Offline Files, Roaming user profiles and Folder redirection.
The two major editions are Windows XP Home Edition, designed for home users, and Windows XP Professional, designed for business and power-users. XP Professional contains advanced features that the average home user would not use. However, these features are not necessarily missing from XP Home. They are simply disabled, but are there and can become functional. These releases were made available at retail outlets that sell computer software, and were preinstalled on computers sold by major computer manufacturers. As of mid-2008, both editions continue to be sold. A third edition, called Windows XP Media Center Edition was introduced in 2002 and was updated every year until 2006 to incorporate new digital media, broadcast television and Media Center Extender capabilities. Unlike the Home and Professional edition, it was never made available for retail purchase, and was typically either sold through OEM channels, or was preinstalled on computers that were typically marketed as "media center PCs".
Two different 64-bit editions were made available, one designed specifically for Itanium-based workstations, which was introduced in 2001 around the same time as the Home and Professional editions, but was discontinued a few years later when vendors of Itanium hardware stopped selling workstation-class machines due to low sales. The other, called Windows XP Professional x64 Edition, supports the x86-64 extension. x86-64 was implemented first by AMD as "AMD64", found in AMD's Opteron and Athlon 64 chips, and later implemented by Intel as "Intel 64" (formerly known as IA-32e and EM64T), found in Intel's Pentium 4 and later chips.
Windows XP Tablet PC Edition was produced for a class of specially designed notebook/laptop computers called tablet PCs. It is compatible with a pen-sensitive screen, supporting handwritten notes and portrait-oriented screens.
Microsoft also released Windows XP Embedded, an edition for specific consumer electronics, set-top boxes, kiosks/ATMs, medical devices, arcade video games, point-of-sale terminals, and Voice over Internet Protocol (VoIP) components. In July 2006, Microsoft released Windows Fundamentals for Legacy PCs, a thin client version of Windows XP Embedded which targets older machines (as early as the original Pentium). It is only available to Software Assurance customers. It is intended for corporate customers who would like to upgrade to Windows XP to take advantage of its security and management capabilities, but can't afford to purchase new hardware.
Editions for specific markets
Windows XP Starter Edition is a lower-cost edition of Windows XP available in Thailand, Indonesia, Russia, India, Colombia, Brazil, Argentina, Peru, Bolivia, Chile, Mexico, Ecuador, Uruguay and Venezuela. It is similar to Windows XP Home, but is limited to low-end hardware, can only run three programs at a time, and has some other features either removed or disabled by default. Each country's edition is also customized for that country, including desktop backgrounds of popular locations, localized help features for those who may not speak English, and other default settings designed for easier use than typical Windows XP installations. The Malaysian version, for example, contains a desktop background of the Kuala Lumpur skyline.
In March 2004, the European Commission fined Microsoft €497 million (US$603 million) and ordered the company to provide a version of Windows without Windows Media Player. The Commission concluded that Microsoft "broke European Union competition law by leveraging its near monopoly in the market for PC operating systems onto the markets for work group server operating systems and for media players". After unsuccessful appeals in 2004 and 2005, Microsoft reached an agreement with the Commission where it would release a court-compliant version, Windows XP Edition N. This version does not include the company's Windows Media Player but instead encourages users to pick and download their own media player. Microsoft wanted to call this version Reduced Media Edition, but EU regulators objected and suggested the Edition N name, with the N signifying "not with Media Player" for both Home and Professional editions of Windows XP. Because it is sold at the same price as the version with Windows Media Player included, Dell, Hewlett-Packard, Lenovo and Fujitsu Siemens have chosen not to stock the product. However, Dell did offer the operating system for a short time. Consumer interest has been low, with roughly 1,500 units shipped to OEMs, and no reported sales to consumers.
In December 2005, the Korean Fair Trade Commission ordered Microsoft to make available editions of Windows XP and Windows Server 2003 that do not contain Windows Media Player or Windows Messenger. Like the European Commission decision, this decision was based on the grounds that Microsoft had abused its dominant position in the market to push other products onto consumers. Unlike that decision, however, Microsoft was also forced to withdraw the non-compliant versions of Windows from the South Korean market. This decision resulted in Microsoft's releasing "K" and "KN" variants of the Home and Professional editions in August 2006.
That same year, Microsoft also released two additional editions of Windows XP Home Edition directed towards subscription-based and pay-as-you-go pricing models. These editions, released as part of Microsoft's FlexGo initiative, are used in conjunction with a hardware component to enforce time limitations on the usage of Windows. Its target market is emerging economies such as Brazil and Vietnam.
ATMs and Vendors
Automated teller machine (ATM) vendors Wincor Nixdorf, NCR Corporation and Diebold Incorporated have all adopted Microsoft Windows XP as their migration path from OS/2. Wincor Nixdorf, who has been pushing for standardization for many years, began shipping ATMs with Windows when they first arrived on the scene.
Diebold initially shipped XP Home Edition exclusively, but, following extensive pressure from customer banks to support a common operating system, switched to support XP Professional to match their primary competitor, NCR Corporation and Wincor Nixdorf.
Microsoft occasionally releases service packs for its Windows operating systems to fix problems and add features. Each service pack is a superset of all previous service packs and patches so that only the latest service pack needs to be installed, and also includes new revisions. However if you still have the earliest version of Windows XP on Retail CD (without any service packs included), you will need to install SP1a or SP2, before SP3 can be installed. Older service packs need not be manually removed before application of the most recent one. Windows Update "normally" takes care of automatically removing unnecessary files.
Windows XP was criticized by some users for security vulnerabilities, tight integration of applications such as Internet Explorer 6 and Windows Media Player, and for aspects of its default user interface. Service Pack 2, Service Pack 3, and Internet Explorer 8 addressed some of these concerns.
The service pack details below only apply to the 32-bit editions. Windows XP Professional x64 Edition was based on Windows Server 2003 Service Pack 1 and claimed to be "SP1" in system properties from the initial release. It is updated by the same service packs and hotfixes as the x64 edition of Windows Server 2003.
Service Pack 1
Service Pack 1 (SP1) for Windows XP was released on September 9, 2002. It contains post-RTM security fixes and hot-fixes, compatibility updates, optional .NET Framework support, enabling technologies for new devices such as Tablet PCs, and a new Windows Messenger 4.7 version. The most notable new features were USB 2.0 support and a Set Program Access and Defaults utility that aimed at hiding various middleware products. Users can control the default application for activities such as web browsing and instant messaging, as well as hide access to some of Microsoft's bundled programs. This utility was first brought into the older Windows 2000 operating system with its Service Pack 3. This Service Pack supported SATA and hard drives that were larger than 137GB (48-bit LBA support) by default. The Microsoft Java Virtual Machine, which was not in the RTM version, appeared in this Service Pack. Support for IPv6 was also introduced in this Service Pack.
Service Pack 2
Service Pack 2 (SP2) was released on August 25, 2004, with an emphasis on security. Unlike the previous service pack, SP2 added new functionality to Windows XP, such as WPA encryption compatibility and improved Wi-Fi support (with a wizard utility), a pop-up ad blocker for Internet Explorer 6, and Bluetooth support. The new welcome screen during the kernel boot removes the subtitles "Professional", "Home Edition" and "Embedded" since Microsoft introduced new Windows XP editions prior to the release of SP2. The green loading bar in Home Edition and the yellow one in Embedded were replaced with the blue bar, seen in Professional and other versions of Windows XP, making the boot-screen of operating systems resemble each other. Colors in other areas, such as Control Panel and the Help and Support tool, remained as before.
Service Pack 2 also added new security enhancements (codenamed "Springboard"), which included a major revision to the included firewall that was renamed to Windows Firewall and became enabled by default, Data Execution Prevention, which can be weakly emulated,[clarification needed] gains hardware support in the NX bit that can stop some forms of buffer overflow attacks. Also raw socket support is removed (which supposedly limits the damage done by zombie machines). Additionally, security-related improvements were made to e-mail and web browsing. Windows XP Service Pack 2 includes the Windows Security Center, which provides a general overview of security on the system, including the state of antivirus software, Windows Update, and the new Windows Firewall. Third-party anti-virus and firewall applications can interface with the new Security Center.
Service Pack 2b
In August 2006, Microsoft released updated installation media for Windows XP SP2 and Windows Server 2003 SP1 to contain a patch that requires ActiveX controls to require manual activation in accordance with a patent held by Eolas. Since then, the technology was licensed by Microsoft, and Service Pack 3 and later versions do not include this update.
Service Pack 2c
On August 10, 2007, Microsoft announced a minor update to Service Pack 2, called Service Pack 2c (SP2c). The update fixes the issue of the diminishing number of available product keys for Windows XP. This update was only available to system builders from their distributors in Windows XP Professional and Windows XP Professional N operating systems. SP2c was released in September 2007.
Service Pack 3
It began being automatically pushed out to Automatic Update users on July 10, 2008. A feature set overview which details new features available separately as standalone updates to Windows XP, as well as backported features from Windows Vista has been posted by Microsoft. A total of 1,174 fixes have been included in SP3. Service Pack 3 can be installed on systems with Internet Explorer versions 6, 7 or 8. Internet Explorer 7 and 8 are not included as part of SP3.
New features in Service Pack 3
- NX APIs for application developers to enable Data Execution Prevention for their code, independent of system-wide compatibility enforcement settings 
- Turns black hole router detection on by default
- Support for SHA-2 signatures in X.509 certificates 
- Network Access Protection client
- Group Policy support for IEEE 802.1X authentication for wired network adapters.
- Credentials Security Service Provider
- Descriptive Security options in Group Policy/Local Security Policy user interface
- An updated version of the Microsoft Enhanced Cryptographic Provider Module (RSAENH) that is FIPS 140-2 certified (SHA-256, SHA-384 and SHA-512 algorithms)
- Installing without requiring a product key during setup for retail and OEM versions
Previously released updates
Service Pack 3 also incorporated several previously released key updates for Windows XP, which were not included up to SP2 including:
- Windows Imaging Component
- IPSec Simple Policy Update for simplified creation and maintenance of IPSec filters
- Background Intelligent Transfer Service (BITS) 2.5
- MSXML 6.0 SP2 and XMLLite
- Microsoft Management Console 3.0
- Credential Roaming service (Digital Identity Management Service) update
- Remote Desktop Protocol 6.1
- Peer Name Resolution Protocol 2.1
- Network Diagnostics update
- WPA2 Update (KB893357)
- Windows Script 5.7
- Windows Installer 3.1 v2
- Wireless LAN API (KB918997)
- Improvements made to Windows Management Instrumentation in Windows Vista to reduce the possibility of corruption of the WMI repository.
Slipstreamed retail and OEM versions of Windows XP with SP3 can be installed and run with full functionality for 30 days without a product key, after which time the user will be prompted to enter a valid key and activate the installation. Volume license key (VLK) versions still require entering a product key before beginning installation.
Windows XP Service Pack 3 is a cumulative update of all previous service packs for XP. The service pack installer checks HKLM\SYSTEM\CurrentControlSet\Control\Windows\CSDVersion registry key to see if has a value greater than or equal to 0x100, and if it does it will allow the update to proceed. Otherwise it will prompt to install either XP SP1 or SP2. Since SP1 is no longer available for full download, it would need to be downloaded using Windows Update. The other option is to manually change the registry key, in essence fooling the installer into thinking SP1 is already installed.
However, it is possible to slipstream SP3 into the Windows XP setup files at any service pack level—including the original RTM version—without any errors or issues. Slipstreaming SP3 into Windows XP Media Center Edition 2005 is not supported.
Service Pack 3 contains updates to the operating system components of Windows XP Media Center Edition (MCE) and Windows XP Tablet PC Edition, and security updates for .NET Framework version 1.0, which is included in these Windows XP SKUs. However, it does not include update rollups for the Windows Media Center application in Windows XP MCE 2005. SP3 also omits security updates for Windows Media Player 10, although the player is included in Windows XP MCE 2005. The Address Bar DeskBand on the Taskbar is no longer included due to legal restrictions. It also removed the Energy Star logo from the ScreenSaver tab of the Display properties, leaving a very noticeable blank space next to the link to enter the Power Management control panel.
System requirements for Windows XP Home Edition and Professional are as follows.
Minimum Recommended Processor 233 MHz At least 300 MHz Memory 64 MB of RAM At least 128 MB of RAM Video adapter and monitor Super VGA (800 x 600) or higher resolution Hard drive disk free space 1.5 GB or higher
(additional 1.8 GB for its Service Pack 2 and additional 900 MB for its Service Pack 3)
Optical drive CD-ROM drive (Only to install from CD-ROM media) Input devices Keyboard, Microsoft Mouse or a compatible pointing device Sound Sound card, Speakers or headphones
- ^1 Even though this is Microsoft's stated minimum processor speed for Windows XP, it is possible to install and run the operating system on early IA-32 processors such as a P5 Pentium without MMX instructions. Windows XP is not compatible with processors older than Pentium (such as 486) because it requires CMPXCHG8B instructions.
- ^2 For many workloads that involve Web browsing, e-mail, and other activities, 64 MB of RAM will provide [the] user experience equivalent or superior to that of Windows Me running on the same hardware."
System requirements for Windows XP Professional x64 Edition are as follows.
- Processor: x86-64 processor
- Memory: At least 256 MB of RAM
- Video adapter and monitor: Super VGA (800 x 600) or higher resolution
- Hard drive disk free space: At least 1.5 GB
- Optical drive: CD-ROM drive
- Input devices: Keyboard; Microsoft Mouse or compatible pointing device
- Sound: Sound card; Speakers or headphones
- Drivers for sound card, GPU of video card, wired LAN card, etc. must be designed for Windows XP Professional x64 Edition.
- Processor: Intel Itanium 733-MHz (Recommended: Intel Itanium 800-MHz or better)
- Memory: At least 1 GB of RAM
- Video adapter and monitor: Super VGA (800 x 600) or higher resolution
- Hard drive disk free space: At least 6 GB
- Optical drive: CD-ROM drive
- Input devices: Keyboard; Microsoft Mouse or compatible pointing device
- Sound: Sound card; Speakers or headphones
- Drivers for sound card, GPU of video card, wired LAN card, etc. must be designed for Windows XP 64-Bit Edition.
Physical memory limits
Maximum limits on physical memory (RAM) that Windows XP can address vary depending on both the Windows version and between 32-bit and 64-bit versions. The following table specifies the maximum physical memory limits supported:
Physical memory limits for Windows XP versions Version Limit in 32-bit Windows Limit in 64-bit Windows Windows XP Professional 4 GB 128 GB Windows XP Home Edition N/A Windows XP Media Center Edition Windows XP Tablet PC Edition Windows XP Starter Edition 512 MB
Support for Windows XP without a service pack ended on September 30, 2004 and support for Windows XP Service Pack 1 and 1a ended on October 10, 2006. Windows XP Service Pack 2 was retired on July 13, 2010, almost six years after its general availability.
In accordance with Microsoft's posted timetable, the company stopped general licensing of Windows XP to OEMs and terminated retail sales of the operating system on June 30, 2008, 17 months after the release of Windows Vista. However, an exception was announced on April 3, 2008, for OEMs installing to ultra low-cost PCs (ULCPCs) until one year after the availability of Windows 7 (that is, until October 22, 2010).
On April 14, 2009, Windows XP and its family of operating systems were moved from Mainstream Support to the Extended Support phase as it marks the progression of the legacy operating system through the Microsoft Support Lifecycle Policy. During the Extended Support Phase, Microsoft will continue to provide security updates every month for Windows XP; however, free technical support, warranty claims, and design changes are no longer being offered.
On January, 14, 2020, downgrade support for Windows XP ends, making the operating system officially obsolete.
License and media types
There are three main types of Windows XP licenses: Retail, Volume (VLK), and Original Equipment Manufacturer (OEM). All three types of licenses are available for Windows XP Professional (32-bit and 64-bit). Windows XP Home Edition is limited to Retail and OEM licenses whereas Windows XP Media Center Edition and Windows XP Tablet PC Edition are exclusively available through VLK and OEM licenses.
Each type of license has a different installation CD. For customized or retail media, there is a small difference on each type of disc that will allow that installation disc to accept only one type of product key.
Only retail and volume licenses include support for end-user installation scenarios from Microsoft. OEM software is preinstalled on systems and is supported by the system manufacturer rather than Microsoft. The price of such software is lower. There are two important restrictions on OEM licenses: Microsoft does not offer technical support, and the license cannot be transferred to another computer. The cost of OEM software products bundled with systems is not disclosed by Microsoft nor by its partners, as each system manufacturer will define its own bundling price.
Microsoft recommends that system manufacturers have their systems tested, for a fee, as part of the Windows Quality Online Services (Winqual) which includes extensive testing so that no component will cause instability in the Windows operating system due to incompatibility with the Windows operating system or with other system components or their respective drivers. Having a system tested and approved will allow the manufacturer to bear the "Certified for Windows" logo sticker on the exterior of the system, and there are additional benefits for having a tested product. This includes the product's being listed on the Windows Marketplace. Because of the fees and extensive requirements, Microsoft acknowledges that smaller system manufacturers may not opt in to the program until they produce computer systems at a modest rate and on recurring designs.
Retail licenses, those purchased from a retail store in full packaging, are of two sub-types: "Upgrade" and "Full Purchase Product", often abbreviated by Microsoft as FPP. FPP licenses are transferable from one computer to another, provided the previous installation is removed from the old computer. Although upgrade licenses are also transferable, a user must have a previous version of Windows even on the new computer to which they are moving the installation. Retail licenses include installation support for end-users, provided directly by Microsoft.
A Volume License is the license given to a software version sold to businesses under a direct purchase agreement with Microsoft, and is sold as an upgrade license only, meaning that a previous license must be available for each new volume license. Volume license versions of Windows XP use a Volume License Key (VLK), which is a product key that does not require Windows Product Activation. The term "Volume License Key" refers to the ability to use one product key for multiple systems, depending on the type of agreement. Since Windows XP Volume License versions do not require product activation, this led to leaked copies of VLK media and product keys from businesses leading to piracy of Windows XP quickly spreading across the Internet upon early release. Beginning with Service Pack 1, Microsoft's active attempts to search out and blacklist known pirated VLK product keys became well known due to the inability to install the service pack on a system with one of the blacklisted keys. Later, this led to the Windows Genuine Advantage program.
Original Equipment Manufacturer (OEM)
Original equipment manufacturer (OEM) licenses are preinstalled on, and sold with, pre-assembled computers from system manufacturers. There are two types of OEM product types — those used for "direct OEMs" (major name brands that buy through a direct contract with Microsoft and produce and brand their own media from a Microsoft "Gold Master Copy" by using an authorized Microsoft duplication partner), and those used for "system builders" (local computer shops that buy generic, unbranded kits through authorized Microsoft distributors). Direct OEM product keys will often not activate with system builder installation media because direct OEMs are now required by Microsoft to pre-activate their copies in the factory using their own internal mechanism before delivery to the customer. It is recommended that system builders also pre-activate their systems before delivery, but this is not mandatory.
OEM installations can be customized using the Microsoft OEM Preinstallation Kit with branding, logos, additional applications, optional services, alternate applications for certain Windows components, Internet Explorer links, and various other customizations. All OEM customers must include support and contact information for the initial installation of Windows because it is the responsibility for the OEM to support the Windows installation, and is not provided by Microsoft to the end-user. Direct OEMs must create their own media, but have the option of creating their own custom recovery solution, which may or may not be similar to a generic installation. Direct OEMs may provide a recovery partition on the hard drive as the custom recovery solution rather than providing disc-based media with the computer.
Some end-users have found this to be a troublesome option, because in the event of an out-of-warranty hard drive failure, they may not have access to any installation media in order to reinstall Windows onto a new hard drive. System builders are not allowed the option to create a custom recovery CD/DVD media. The only deliverable media available for a system builder to give to the end-user is the unbranded OEM system builder hologram media kit. Because of this, when end-users reformat their hard drives and re-install from the installation media, they lose all the custom branding and support information that the system builder would have included.
As a supplemental recovery method to a CD/DVD-based installation, a system builder may employ a fully customized recovery solution on the hard drive. Whether utilizing a recovery partition or not, a system builder must still include the original generic OEM system builder hologram CD/DVD media kit. OEM licenses are not transferable from one computer to another. Every computer sold/resold with an OEM license must include all of the original installation media or recovery solution, documentation, Certificate of Authenticity, and product key sticker with the sale. Microsoft requires that all OEM system manufacturers include as part of the configuration the Windows Out-of-Box Experience (OOBE), which is the initial setup wizard encountered the first time Windows boots up. It is also required that value-added resellers (VAR's), retailers, and general resellers not tamper with the OEM's customized OOBE mechanism unless under permission by the OEM, and it is a recommended configuration for systems that are privately resold so that a customer will have a like-new computer experience upon first boot-up.
OEM licenses are to be installed by professional system manufacturers only. Under Microsoft's OEM License Agreement, they are not to be sold to end-users under any circumstance, and are to be preinstalled on a computer using the OEM Preinstallation Kit (OPK) before shipment to the customer, and must include at the very least the manufacturer's support contact information. They are, therefore, designed for installation only on a single computer and are not transferable, even if the original computer is no longer in use. This is not usually an issue for users who purchase new computer systems, because most pre-assembled systems ship with a preinstalled operating system. There are few circumstances where Microsoft will allow the transfer of an OEM license from one non-functioning system to another, but the OEM System Builder License Agreement (SBLA), as well as the OEM End User License Agreement (EULA) do not contain any allowance for this, so it is entirely up to Microsoft's discretion, depending on the situation.
Non-use by end user
In the event that an end user decides that they do not wish to use a preinstalled version of Windows, Microsoft's End User License Agreement (EULA) provides that the software may be returned to the OEM for a refund. Despite refusal of some manufacturers to honor the entitlement, it has been enforced by courts in some countries.
- Comparison of operating systems
- History of operating systems
- List of operating systems
- Comparison of Windows Vista and Windows XP
- ^ "Windows Licensing Programs". Microsoft. http://www.microsoft.com/resources/sharedsource/windowslp.mspx. Retrieved September 21, 2008.
- ^ a b c d e "Microsoft Support Lifecycle (Windows XP)". Microsoft. http://support.microsoft.com/lifecycle/?C2=1173. Retrieved June 7, 2010.
- ^ "Windows XP to Take the PC to New Heights". Microsoft News Center. Microsoft Corporation. August 24, 2001. http://www.microsoft.com/presspass/press/2001/aug01/08-24winxprtmpr.mspx. Retrieved August 8, 2011.
- ^ "Microsoft Announces Windows XP and Office XP". Microsoft PressPass. Microsoft. February 5, 2001. http://www.microsoft.com/presspass/press/2001/feb01/02-05namingpr.mspx. Retrieved September 17, 2009. "The XP name is short for "experience""
- ^ Jeremy Kirk (January 18, 2006). "Analyst: No effect from tardy XP service pack". ITworld.com. Archived from the original on March 17, 2007. http://web.archive.org/web/20070317204906/http://www.itworld.com/Comp/4063/060118xpsp3/pfindex.html. Retrieved October 5, 2011.
- ^ System Builders Can Buy Windows XP Until January '09.
- ^ http://oem.microsoft.com/script/contentPage.aspx?pageid=564778[dead link]
- ^ "Microsoft Windows System Overview". Microsoft.com. http://www.microsoft.com/technet/archive/winntas/training/ntarchitectoview/ntarc_2.mspx. Retrieved August 26, 2010.
- ^ David Coursey (October 25, 2001). "The 10 top things you MUST know about Win XP". CNet.com. http://review.zdnet.com/4520-6033_16-4206552.html. Retrieved July 22, 2008.
- ^ "A Brief History and Introduction to Windows". Princeton University. July 22, 2004. http://helpdesk.princeton.edu/kb/display.plx?ID=9672. Retrieved July 22, 2008.
- ^ "Simplifying Deployment and Solving DLL Hell with the .NET Framework". Microsoft Developer Network. Microsoft. November 2001. http://msdn.microsoft.com/en-us/library/ms973843.aspx. Retrieved July 21, 2008.
- ^ "How To Build and Service Isolated Applications and Side-by-Side Assemblies for Windows XP". Microsoft Developer Network. Microsoft. August 24, 2001. http://msdn.microsoft.com/en-us/library/ms997620.aspx. Retrieved July 21, 2008.
- ^ "Windows "Longhorn" FAQ". Paul Thurrott's SuperSite for Windows. June 22, 2005. http://www.winsupersite.com/faq/longhorn.asp. Retrieved April 4, 2008. (see Q: What's up with the name Longhorn?)
- ^ "Change Windows visual effects". Microsoft. http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/display_change_visual_effects.mspx.
- ^ "Computer Slows When You Click Multiple Icons in Windows XP". Microsoft. January 15, 2006. http://support.microsoft.com/default.aspx?scid=kb;EN-US;294770.
- ^ "UXTheme Multi-Patchers". Neowin. February 12, 2004. http://www.neowin.net/forum/index.php?showtopic=140707.
- ^ "Royale Noir: secret XP theme uncovered". istartedsomething.com. October 29, 2006. http://www.istartedsomething.com/20061029/royale-noir/. Retrieved April 23, 2008.
- ^ "Zune Desktop Theme". Microsoft Corporation. March 11, 2006. Archived from the original on August 10, 2011. http://www.webcitation.org/1312941924177167. Retrieved August 8, 2011.
- ^ "Royale Theme for WinXP - Official". Windows downloads. Softpedia. May 11, 2006. http://www.softpedia.com/get/Desktop-Enhancements/Themes/Royale-Theme-for-WinXP.shtml. Retrieved April 6, 2008.
- ^ Turner, Paul (February 22, 2004). "No view of Palouse from Windows". The Spokesman-Review (Spokane). Archived from the original on November 16, 2009. http://www.webcitation.org/5lKhQRgaA. Retrieved November 16, 2009.
- ^ "New Graphical Interface: Enhance Your Programs with New Windows XP Shell Features". MSDN. Microsoft Corporation. November 2001. http://msdn.microsoft.com/en-us/library/bb986055.aspx. Retrieved August 8, 2011.
- ^ a b "Kernel Enhancements for Windows XP". Windows Hardware Developer Center (WHDC). Microsoft Corporation. January 13, 2003. http://www.microsoft.com/whdc/driver/kernel/XP_kernel.mspx. Retrieved August 8, 2011.
- ^ "Windows XP: Kernel Improvements Create a More Robust, Powerful, and Scalable OS". MSDN Magazine. http://msdn.microsoft.com/msdnmag/issues/01/12/xpkernel/default.aspx.
- ^ "HOW TO: Use the Driver Roll Back Feature to Restore a Previous Version of a Device Driver in Windows XP". Microsoft. http://support.microsoft.com/default.aspx?kbid=306546.
- ^ "Windows XP Reviewers Guide" (PDF). Microsoft Corporation. August 2001. http://download.microsoft.com/download/1/6/6/16674679-1e6e-4304-a5a0-49eeaa31e639/RevGuide.pdf. Retrieved August 8, 2011.
- ^ "How To Use the Fast User Switching Feature in Windows XP (Revision 1.5)". Microsoft Support. Microsoft Corporation. March 27, 2007. http://support.microsoft.com/kb/279765. Retrieved August 8, 2011.
- ^ "HOW TO: Use ClearType to Enhance Screen Fonts in Windows XP". Microsoft Support. Microsoft Corporation. October 27, 2002. http://support.microsoft.com/kb/306527. Retrieved August 8, 2011.
- ^ "ClearType information". Microsoft Typography. Microsoft Corporation. http://www.microsoft.com/typography/ClearTypeInfo.mspx. Retrieved August 8, 2011.
- ^ "Frequently Asked Questions About Remote Desktop". Microsoft. http://www.microsoft.com/windowsxp/using/mobility/rdfaq.mspx.
- ^ "Windows XP Networking Features and Enhancements". Microsoft TechNet. Microsoft Corporation. August 8, 2001. http://technet.microsoft.com/en-us/library/bb457047.aspx. Retrieved August 8, 2011.
- ^ Yegulalp, Serdar (August 19, 2003). "Windows XP's built-in administration tools". TechTarget. http://searchenterprisedesktop.techtarget.com/tip/Windows-XPs-built-in-administration-tools?vgnextfmt=print. Retrieved August 8, 2011.
- ^ Schofield, Jack (November 13, 2001). "A very good job...?". The Guardian (Guardian Media Group). http://www.guardian.co.uk/education/2001/nov/13/itforschools.schools2. Retrieved June 30, 2011. "The consensus feeling seems to be that XP provides the ease of use of Acorn and Apple systems, plus the solidity and advanced capabilities of Unix, while retaining most of the compatibility of Windows 95/98 and Me."
- ^ Paul Thurrott (January 3, 2005). "Windows XP Starter Edition". Paul Thurrott's SuperSite for Windows. http://www.winsupersite.com/showcase/windowsxp_starter_edition.asp. Retrieved April 12, 2008.
- ^ "Windows XP-lite 'not value for money'". Silicon.com. June 28, 2005. http://management.silicon.com/government/0,39024677,39131434,00.htm.
- ^ "Europe gets 'reduced' Windows". Seattle Pi. December 24, 2004. http://www.seattlepi.com/business/205093_msftfolo24.html.
- ^ "European Windows Called 'Windows XP Home Edition N'". Redmondmag.com. March 28, 2005. http://www.redmondmag.com/news/article.asp?EditorialsID=6625.
- ^ "Microsoft and EU reach agreement". BBC. March 28, 2005. http://news.bbc.co.uk/2/hi/business/4388349.stm.
- ^ Nate Anderson (7 December 2005). "South Korea fines Microsoft for antitrust abuses". Ars Technica. http://arstechnica.com/news.ars/post/20051207-5702.html. Retrieved April 12, 2008.
- ^ Microsoft Unveils Pay-As-You-Go Personal Computing Designed for Emerging Market Consumers. . PressPass (Microsoft). May 21, 2006. http://www.microsoft.com/presspass/press/2006/may06/05-21EmergingMarketConsumersPR.mspx. Retrieved June 7, 2008.
- ^ "List of languages supported in Windows 2000, Windows XP, and Windows Server 2003". Microsoft. December 3, 2007. http://support.microsoft.com/kb/292246. Retrieved May 13, 2008.
- ^ "Cumulative Help Update for Microsoft Windows XP Multilingual User Interface (MUI) Pack (KB841625)". Microsoft. http://download.microsoft.com/download/6/2/e/62e61f10-e106-4f4c-a862-63eec2b41efb/readme.htm. Retrieved May 13, 2008.
- ^ "Unlimited Potential: Local Language Program". Microsoft. http://www.microsoft.com/industry/publicsector/government/locallanguage/find-a-language.aspx?regid=_all_. Retrieved 2008-04-09.
- ^ "Windows XP Service Pack 2 Overview". Microsoft. 2004-08-04. http://www.microsoft.com/windowsxp/sp2/overview.mspx. Retrieved 2007-10-31.
- ^ "Windows XP Service Pack 1 preview". September 9, 2002. http://www.winsupersite.com/reviews/windowsxp_sp1_preview.asp. Retrieved September 21, 2007.
- ^ "Differences Between Windows XP SP1 and Windows XP SP1a". February 3, 2003. http://support.microsoft.com/?kbid=813926. Retrieved September 21, 2007.
- ^ "How to obtain the latest Windows XP service pack". March 26, 2007. Archived from the original on March 13, 2011. http://replay.waybackmachine.org/20041014021822/http://support.microsoft.com/kb/322389. Retrieved September 21, 2007.
- ^ Thurrott, Paul (October 15, 2003). Windows IT Pro. Windows XP SP2 to be 'Springboard' to Longhorn.
- ^ "Windows XP Service Pack 2 information". Microsoft. August 4, 2004. http://www.microsoft.com/windowsxp/sp2/overview.mspx.
- ^ "Internet Explorer 6 software update and its effect on ActiveX controls". Microsoft. http://support.microsoft.com/default.aspx/kb/912945.
- ^ "Why Windows XP SP2b and Windows Server 2003 SP2a?". Microsoft. August 21, 2006. http://blogs.technet.com/backroom/archive/2006/08/21/448330.aspx.
- ^ "Windows XP Service Pack 2c (SP2c) press release". Blink.nu. August 10, 2007. http://bink.nu/news/microsoft-windows-xp-professional-service-pack-2c-release.aspx.
- ^ "Windows XP Service Pack 2c (SP2c) information". Microsoft. September 17, 2007. http://oem.microsoft.com/script/sites/public/winxp_sp2c.htm.
- ^ "Windows XP Service Pack 3 Released to Manufacturing". Microsoft. 2008-04-21. http://social.technet.microsoft.com/forums/en-US/itproxpsp/thread/9ababbbc-d3ed-41c4-8b6c-9d194c121604. Retrieved 2009-01-29.
- ^ "Windows XP SP3 Released to Web (RTW), now available on Windows Update and Microsoft Download Center". Microsoft. 2008-05-06. http://social.technet.microsoft.com/forums/en-US/itproxpsp/thread/34234455-65a4-4069-a034-435e95b17f84. Retrieved 2009-01-29.
- ^ "Windows XP Service Pack 3 Network Installation Package for IT Professionals and Developers". Microsoft. 2008-05-06. http://www.microsoft.com/downloads/details.aspx?FamilyID=5b33b5a8-5e76-401f-be08-1e1555d4f3d4&DisplayLang=en. Retrieved 2008-05-07.
- ^ "Windows XP Service Pack 3 - ISO-9660 CD Image File". Microsoft. 2008-05-06. http://www.microsoft.com/downloads/details.aspx?FamilyID=2fcde6ce-b5fb-4488-8c50-fe22559d164e&DisplayLang=en. Retrieved 2008-05-07.
- ^ "Microsoft sets XP SP3 automatic download for Thursday". Computerworld. 2008-07-08. http://computerworld.com/action/article.do?command=viewArticleBasic&articleId=9107918. Retrieved 2008-07-08.
- ^ "Windows XP Service Pack 3 Overview". Microsoft. 2008-05-06. http://www.microsoft.com/downloads/details.aspx?FamilyID=68c48dad-bc34-40be-8d85-6bb4f56f5110&DisplayLang=en. Retrieved 2008-05-07.
- ^ List of fixes that are included in Windows XP Service Pack 3.
- ^ No, Internet Explorer 7 Will Not(!) Be a Part of Windows XP SP3.
- ^ Windows XP SP3 features.
- ^ "New NX APIs added to Windows Vista SP1, Windows XP SP3 and Windows Server 2008". Michael Howard's Web Log. MSDN Blogs (Microsoft Corporation). 2008-01-29. http://blogs.msdn.com/b/michael_howard/archive/2008/01/29/new-nx-apis-added-to-windows-vista-sp1-windows-xp-sp3-and-windows-server-2008.aspx. Retrieved August 8, 2011.
- ^ a b c Overview of Windows XP Service Pack 3.
- ^ IEEE 802.1X Wired Authentication: The Cable Guy.
- ^ Description of the Credential Security Service Provider (CredSSP) in Windows XP Service Pack 3.
- ^ Information about Windows Imaging Component.
- ^ How to simplify the creation and maintenance of Internet Protocol (IPsec) security filters in Windows Server 2003 and Windows XP.
- ^ A hotfix is available that improves the stability of the Windows Management Instrumentation repository in Windows XP
- ^ Slipstreamed SP3 still asks for product key.
- ^ a b Installing Windows XP Service Pack 3 (SP3.
- ^ "To Chris Keroack [MSFT] - Slipstreaming". Archived from the original on May 3, 2008. http://web.archive.org/web/20080503101223/http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=3226434&SiteID=17. Retrieved 2008-05-19.
- ^ Slipstreaming SP3 with MCE 2005.
- ^ a b FAQs regarding SP3 RTM.
- ^ Lost Address Bar: Windows XP SP3 forum.
- ^ "System requirements for Windows XP operating systems". 28 April 2005. http://support.microsoft.com/kb/314865. Retrieved 2007-03-12.
- ^ "The hard disk space requirements for Windows XP Service Pack 2". Microsoft. 18 April 2005. http://support.microsoft.com/kb/837783. Retrieved 1 December 2010.
- ^ a b c Any optical drive that can read CD-ROM media.
- ^ "Windows XP Performance". 2001-06-01. http://technet.microsoft.com/en-us/library/bb457057.aspx. Retrieved 2008-04-08.
- ^ System requirements for Windows XP professional x64 edition.
- ^ System requirements for Windows XP 64-Bit edition.
- ^ System requirements for Windows XP 64-Bit edition.
- ^ a b "What is the maximum amount of RAM the Windows operating system can handle?". Crucial. http://www.crucial.com/kb/answer.aspx?qid=3743. Retrieved 2010-06-25.
- ^ a b "Windows XP System Requirements". Support Documents. Gateway, Inc. http://support.gateway.com/s/software/misc/SUPPAGE01su136.shtml. Retrieved August 8, 2011.
- ^ A logical processor is either: 1) One of the two handlers of thread of instructions of one of the number of cores of one of the number of physical processors with support for HyperThreading; or 2) One of the number of cores of one of the number of physical processors without support for HyperThreading.
- ^ 32 cores without support for HyperThreading, 16 cores with support for HyperThreading.
- ^ "Processor Affinity Under WOW64". MSDN. Microsoft Corporation. January 27, 2011. http://msdn.microsoft.com/en-us/library/aa384228. Retrieved August 8, 2011.
- ^ 64 cores without support for HyperThreading, 32 cores with support for HyperThreading.
- ^ Maximum quantity of logical processors in a PC supported by Microsoft Windows XP professional, x64 edition.
- ^ "Processor and memory capabilities of Windows XP Professional x64 Edition and of the x64-based versions of Windows Server 2003 (Revision 7.0)". Microsoft Support. Microsoft Corporation. December 20, 2010. http://support.microsoft.com/kb/888732. Retrieved August 8, 2011.
- ^ Multiprocessor limit for Windows XP Home Edition
- ^ "Lifecycle Supported Service Packs". Microsoft. http://support.microsoft.com/default.aspx?scid=fh;%5Bln%5D;lifesupsps#Windows. Retrieved June 19, 2007.
- ^ "End of support for Windows 98, Windows Me, and Windows XP Service Pack 1". January 6, 2006. http://www.microsoft.com/windows/support/endofsupport.mspx. Retrieved June 27, 2006.
- ^ "Lifecycle Supported Service Packs". http://support.microsoft.com/gp/lifesupsps#Windows. Retrieved February 2, 2007.
- ^ "Microsoft Extends Sales Availability of Windows XP". http://www.microsoft.com/presspass/features/2007/sep07/09-27xpsalescycle.mspx. Retrieved April 8, 2008.
- ^ Ina Fried (September 27, 2007). "Microsoft extends Windows XP's stay". CNet News. http://www.news.com/Microsoft-extends-Windows-XPs-stay/2100-1016_3-6210524.html. Retrieved June 5, 2008.
- ^ "Microsoft Announces Extended Availability of Windows XP Home for ULCPCs". http://www.microsoft.com/presspass/features/2008/apr08/04-03xpeos.mspx. Retrieved April 8, 2008.
- ^ "Microsoft to keep Windows XP alive—but only for Eee PCs and wannabes". http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9074720. Retrieved April 8, 2008.
- ^ "Microsoft Extends XP Through 2010 for Ultra-Low-Cost Laptops". http://www.pcworld.com/article/id,144135-page,1/article.html. Retrieved April 4, 2008.
- ^ Rose, Stephen L (July 11, 2011). "With only 1000 days left of extended support, don’t you think it’s time to retire Windows XP?". The Windows Blog. Microsoft. http://windowsteamblog.com/windows/b/springboard/archive/2011/07/11/with-only-1000-days-left-of-extended-support-don-t-you-think-it-s-time-to-retire-windows-xp.aspx. Retrieved July 12, 2011.
- ^ "Microsoft OEM Partner Center Website". http://oem.microsoft.com. Retrieved August 7, 2007.
- ^ Don Marti (November 6, 2006). "Dell customer gets Windows refund". Linuxworld. http://www.networkworld.com/news/2006/110706-dell-windows.html. Retrieved September 13, 2008.
- ^ "HP must reimburse Italian PC buyer the amount paid for Microsoft software". Heise online. October 29, 2007. http://www.heise.de/english/newsticker/news/98106. Retrieved September 13, 2008.
- ^ "Ruling: Acer must refund purchase price of preinstalled software that is not being used". Cebit. 2007-09-26. http://www.cebit.de/newsanzeige_d?news=30814&tag=1190757601&source=%2Fnewsarchiv_e&noindex=. Retrieved 2010-03-01.
- Joyce, Jerry; Moon, Marianne (2004). Microsoft Windows XP Plain & Simple. Microsoft Press. ISBN 9780735621121.
External videos Is Windows XP Good Enough?, Microsoft
- Microsoft Windows XP Home Page
- Windows XP Help & How-to
- Microsoft Windows XP Reviewers Guide - August 2001 (PDF format)
- Windows XP Memory Limits
- Windows XP Service Pack 3 Network Installation Package for IT Professionals and Developers(Full Offline Installer)
Microsoft Windows family DOS-Based Windows 9x Windows NTEarly versions[α]Client releasesSpecialized Windows CE MobileWindows Mobile · Windows Phone Cancelled Related topics
- ^ These operating systems have both client and server editions.
Wikimedia Foundation. 2010.