What Operating System do you use?

Windows 7 x64

Windows 7 x64..... tried windows 8 but was overwhelmed by the changes

Windows 7 Ultimate x86

Windows 7 Ultimate 64 bit.

Win8 x64

Windows 7 Ultimate 32 bit.

Windows 8.1 Pro Update 1

windows 7 for me , i didn't like windows 8 interface it was focused for touchscreen

@Tracker17

ENGLISH ONLY

Win7 x64