hey,
I got this c0000022 error on start up, i have tried with system restore, start up repair, I have unplugged all my USB ports, and tried those two things again. I have restarted my computer and has it run using the disk of windows 7, and tried repairing it on that, and that doesn't work. And my windows 7 has already been authentic. I use windows 7 professional, and my computer uses AMD 970A-D3 motherboard, and has a AMD Phenom II x4 965 3.40 GHz CPU if u need to know.
Dennis