Windows 7, a major release of the Microsoft Windows operating system, was available in six different editions: Starter, Home Basic, Home Premium, Professional, Enterprise and Microsoft windows home premium 7 download full version. Only Home Premium, Professional, and Ultimate were widely available at retailers.
According to Microsoft, the features for all editions of Windows 7 are stored on the machine, regardless of which edition is in use. Users who wish to upgrade to an edition of Windows 7 with more features could use Windows Anytime Upgrade to purchase the upgrade and to unlock the features of those editions. Windows 7 Starter is the edition of Windows 7 that contains the fewest features. It is only available in a 32-bit version and does not include the Windows Aero theme. Windows 7 Home Basic was available in “emerging markets”, in 141 different countries.
Some Windows Aero options are excluded along with several new features. This edition contains features aimed at the home market segment, such as Windows Media Center, Windows Aero and multi-touch support. It was available in both 32-bit and 64-bit versions. This edition is targeted towards enthusiasts, small-business users, and schools. This edition targeted the enterprise segment of the market and was sold through volume licensing to companies which have a Software Assurance contract with Microsoft. Windows 7 Ultimate contains the same features as Windows 7 Enterprise, but unlike the Enterprise edition, it was available to home users on an individual license basis.
Windows 7 Home Premium and Windows 7 Professional users are able to upgrade to Windows 7 Ultimate for a fee using Windows Anytime Upgrade if they wish to do so. The license for the software will place restrictions on the use of the key. This option is only sometimes available, depending on the editions of Windows being used, and is not available at all unless upgrading from Windows Vista. This option is always available and is required for all versions of Windows XP.