Using Windows 7 SP0 x64 Build 617600 is not recommended due to the lack of security updates, making it vulnerable to known exploits.
Gamework Windows 7 Professional Windows 7 Professional Operating System X32 X64 windows 7 sp0 x64 build 617600 full version link
release (Released to Manufacturing on July 22, 2009), represented more than just a software update; it was a critical recovery mission for Microsoft. Following the polarized reception of Windows Vista, Build 7600 was the "full version" that restored user confidence and defined the desktop experience for a decade. 1. Refining the Vision Using Windows 7 SP0 x64 Build 617600 is