When I used to have old computers, I used to have a method for fixing stuff like this. I booted up, then stopped it at the command line. I then formatted my hard drive. Next, I inserted my old Windows 98 SE CD, and re-installed Windows. Those were the good old days..... the days where everytime something went majorly wrong, you just wiped the whole hard drive But yeah.... delete save games. I had that once before.