enterprise edition of windows 7 does not support x64 cpus.
which edition of windows 7 does not support x64 cpus?
enterprise
windows 7 editions





























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 are not included in home-basic edition packages, but can be obtained separately from microsoft.
windows 7 editions
x64 editions of microsoft windows client and server—windows xp professional x64 edition and windows server 2003 x64 edition—were released in march 2005. internally they are actually the same build (5.2.3790.1830 sp1), as they share the same source base and operating system binaries, so even system updates are released in unified packages, much in the manner as windows 2000 professional and server editions for x86. windows vista, which also has many different editions, was released in january 2007. windows 7 was released in july 2009. windows server 2008 r2 was sold in only x64 and itanium editions; later versions of windows server only offer an x64 edition.
x86-64