Even operating system takes some juice of the computer if you look at the hierarchy XP < Vista < Window7. If you want to play games with Window 7 only option you have is to disable some features of the operating system to work more efficiently or upgrade your hardware.
I used a heavily ripped version of window 7 and i could able to play AC with 90 FPS that was quite good and with XP 140 FPS. Other thing is drivers if you got some real old machine Window7 have some problem finding the suitable drivers i had problem with my sound card drivers.
I used a heavily ripped version of window 7 and i could able to play AC with 90 FPS that was quite good and with XP 140 FPS. Other thing is drivers if you got some real old machine Window7 have some problem finding the suitable drivers i had problem with my sound card drivers.