using the repair function
I'm trying to help fix a father in laws computer. He some how got the blaster worm virus, and is having all kinds of problems. I think I can fix that, but now he is not even able to boot into windows(XP PRO). He gets an error and then it says to go fix it with the repair function. The error is windowssystem32config\system is corrupt or missing. I not sure how to fix this using the repair function from the CD. It puts me at a dos prompt, and I'm not sure where to go from there. Any help would be awsome.
I tried to look on Microsoft's site, but that's like looking for a needle in a hay stack.
The worst part about this is that I'm doing this over the phone so I have to spell everything out. That makes it 10 times as fun.