I want to replace my locked i5 3.3Ghz cpu on a Windows 7 64 bit rig to a unlocked i5-2500K on my ASUS P8P67 Pro mobo. Will windows accept this and not freak out? I'm uncertain because I read conflicting reports on if I will have to rebuild windows or not. I used to swap cpu's as needed, but things are more complicated now. Thanks for any help if anyone knows factually if this is possible without rebuilding Windows.