System Locked Preinstallation

System Locked Preinstallation

System Locked Preinstallation, often abbreviated as SLP, is a procedure used by major OEM computer manufacturers in order to preactivate Microsoft's operating systems Windows XP, Windows Server 2003 and Windows Vista before mass distribution. There are two different versions of SLP; 2.0 is used for Windows Vista and Server 2008 while SLP, which is commonly now referred to as SLP 1.0 to avoid confusion, for Windows XP and Server 2003. Operating systems that use SLP 1.0 check for a particular text string in a computer's BIOS upon booting. If the text string does not match the information stored in the particular installation's OEMBIOS files, the user is prompted to activate his or her copy as normal. SLP 2.0 works in a similar manner. This effectively "locks" the operating system to the qualified motherboard. In addition, if an end user feels the need to perform a "clean install" of Windows, and if the manufacturer supplies the user with an installation disc (not a "System Recovery" disc that is a hard drive image), the user will not be prompted to activate the copy, given that the installation is performed on the same motherboard. Furthermore, because the check only involves the BIOS and not hardware, a user is allowed to change virtually all hardware components within the machine, a procedure that would normally trigger re-activation in retail XP/Server 2003 copies.

It is important to note that SLP installations still require a product key, which are unique to the specific version of Windows (Home, Professional, Server, etc...). The product key printed on the Certificate of Authenticity affixed to an OEM assembled computer will usually suffice. As of February 28, 2005 [http://www.betanews.com/article/Microsoft_Closes_Activation_Loophole/1109293194] , those keys were invalidated for normal activation by Microsoft in an effort to further reduce software piracy, but does not apply to SLP. If the COA product key is lost, then product key finders, readily available on the Internet, can decrypt the key from a local installation. Keys from either source will allow the user to avoid activation upon reinstallation. Also, Microsoft released the following generic product keys that can be used to avoid product activation on any SLP-enabled computer using the corresponding version of Windows XP:

(Please note that the following keys are not volume license keys. The installation source must also be SLP-enabled by the manufacturer.)

Source: http://technet.microsoft.com/en-us/library/bb457078(TechNet.10).aspx


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • System-Locked Preinstallation — (SLP) bezeichnet eine Form der Windows Installation durch einen OEM Computerhersteller, bei der für den Endkunden die sonst seit Windows XP obligatorische Produktaktivierung entfällt. Funktionsweise Eine SLP Installation von Windows sucht beim… …   Deutsch Wikipedia

  • BIOS — This article is about the personal computer term. For other uses, see Bios. In IBM PC compatible computers, the basic input/output system (BIOS), also known as the System BIOS or ROM BIOS (pronounced /ˈbaɪ.oʊs/), is a de facto standard… …   Wikipedia

  • Netbook — For the Psion device, see Psion netBook. HP 2133 Mini Note PC netbook (fron …   Wikipedia

  • Windows Product Activation — is an anti piracy measure created by Microsoft Corporation that enforces the Windows EULA (End User License Agreement) and/or other license agreements.If the Windows operating system is not activated within a limited period of time, it will… …   Wikipedia

  • SLP — may stand for: Science and technology * Sea level pressure , see Atmospheric pressure * Self Loading Pistol or the L9A1 in service with the British Army as the Browning * Super long play ** see VHS ** see DVD recorder ** see digital video… …   Wikipedia

  • SLP — steht für: Partidul Social Liberal, sozialliberale politische Partei in Moldawien; San Luis Potosí (Bundesstaat), mexikanischer Bundesstaat; Sächsische Lokalrundfunk Dienstleistungsprogramm GmbH Co., siehe SLP (Unternehmen); Sea level pressure… …   Deutsch Wikipedia

  • Activación de producto de Windows — La activación de producto de Windows es una medida anti piratería creada por Microsoft Corporation que refuerza los acuerdos de uso de licencia por el usuario. Si el sistema operativo Windows no se activa en un periodo limitado de tiempo, se… …   Wikipedia Español

  • Windows XP editions — This article is part of a series on Windows XP New features Releases and editions (x64 · Media Center) Development history …   Wikipedia

  • Features new to Windows Vista — This article is part of a series on Windows Vista New features Overview Technical and core system Security and safety Networking technologies I/O technologies Management and administration Removed features …   Wikipedia

  • History of Microsoft Windows — In 1983, Microsoft announced the development of Windows, a graphical user interface (GUI) for its own operating system (MS DOS), which had shipped for IBM PC and compatible computers since 1981. The product line has changed from a GUI product to… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”