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2. Windows 7 editions - Wikipedia

   en.wikipedia.org/wiki/Windows_7_editions

   t. e. Windows 7, a major release of the Microsoft Windows operating system, has been released in several editions since its original release in 2009. Only Home Premium, Professional, and Ultimate were widely available at retailers (including Enterprise for big businesses, companies etc.). [1] The other editions focus on other markets, such as ...

3. Windows 7 - Wikipedia

   en.wikipedia.org/wiki/Windows_7

   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.

4. Comparison of Microsoft Windows versions - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_Microsoft...

   Comparison of Microsoft Windows versions. Microsoft Windows is the name of several families of computer software operating systems created by Microsoft. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs).

5. Product key - Wikipedia

   en.wikipedia.org/wiki/Product_key

   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. This sequence is typically entered by the user during the installation of computer software, and is ...

6. Microsoft Product Activation - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Product_Activation

   Microsoft Product Activation is a DRM technology used by Microsoft Corporation in several of its computer software programs, most notably its Windows operating system and its Office productivity suite. The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to ...

7. Windows Anytime Upgrade - Wikipedia

   en.wikipedia.org/wiki/Windows_Anytime_Upgrade

   Windows Anytime Upgrade (Add Features to Windows) was a service by Microsoft introduced in Windows Vista that facilitated upgrades across successive editions of Windows Vista. [1] Prices for upgrades purchased through Windows Anytime Upgrade were lower than prices for upgrades purchased at retail. [2][3] Windows Anytime Upgrade is included in ...