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  2. Microsoft Product Activation - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Product_Activation

    In this case, the copy of Windows installed does not use the product key listed on the certificate of authenticity, but rather a master product key issued to OEMs called a System Locked Pre-installation (SLP) key. On each boot, Windows confirms the presence of specific information stored in the BIOS by the manufacturer, ensuring the activation ...

  3. Windows 7 editions - Wikipedia

    en.wikipedia.org/wiki/Windows_7_editions

    Windows 7 Ultimate is the edition of Windows 7 that contains the most features. It includes all the features of Windows 7 Home Premium and Professional while also adding some additional enterprise-oriented features that were available on the SA-exclusive Windows 7 Enterprise, making it feature-complete with the latter; this edition was also ...

  4. Product key - Wikipedia

    en.wikipedia.org/wiki/Product_key

    Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters.

  5. Windows 7 - Wikipedia

    en.wikipedia.org/wiki/Windows_7

    Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. [10] It is the successor to Windows Vista, released nearly three years earlier. Windows 7's server counterpart, Windows Server 2008 R2, was released at the ...

  6. Windows Vista editions - Wikipedia

    en.wikipedia.org/wiki/Windows_Vista_editions

    Windows Vista Ultimate "Windows Vista Product Red" gadgets Windows Vista Ultimate includes all features of the Home Premium and Business editions, as well as BitLocker and MUI; it also provides access to optional "Ultimate Extras." Windows Vista Ultimate supports up to two physical CPUs, [18] and the 64-bit version supports up to 128 GB of RAM ...

  7. Windows Ultimate Extras - Wikipedia

    en.wikipedia.org/wiki/Windows_Ultimate_Extras

    Windows Ultimate Extras were optional features offered by Microsoft to users of the Ultimate edition of Windows Vista and are accessible via Windows Update. Ultimate Extras replaced the market role of Microsoft Plus! , a product sold for prior consumer releases of Microsoft Windows . [ 1 ]

  8. Volume licensing - Wikipedia

    en.wikipedia.org/wiki/Volume_licensing

    Traditionally, a product key has been supplied with computer programs. It acts analogously to a password: The computer programs of old ask the user to prove their entitlement; in response, the user provides this key. This key, however, must only be used once, i.e. on one computer. A volume licensing key (VLK), however, can be used on several ...

  9. Windows XP editions - Wikipedia

    en.wikipedia.org/wiki/Windows_XP_editions

    Windows XP Media Center Edition 2004 ("Harmony", September 2003) [25] Windows XP Service Pack 2 upgrades earlier versions of MCE to this one. Windows XP Media Center Edition 2005 ("Symphony", October 2004) [26] is the first edition of MCE available to non-Tier 1 system builders. Among other things it includes support for Media Center Extenders ...