<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> 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 Ultimate . Only Home Premium, Professional, and Ultimate were widely available at retailers . The other editions focus on other markets, such as the software development world or enterprise use . All editions support 32 - bit IA - 32 CPUs and all editions except Starter support 64 - bit x64 CPUs. 64 - bit installation media is not included in Home - Basic edition packages, but can be obtained separately from Microsoft . </P> <P> 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 . Microsoft announced Windows 7 pricing information for some editions on June 25, 2009, and Windows Anytime Upgrade and Family Pack pricing on July 31, 2009 . </P>

Which edition of windows 7 does not support x64 cpus