hello, you have a virus. 1: when you get your computer back up. try start, run, and type chkdsk in the box on a windows computer. 2: if you can't get back up load your original operating system cd for windows. when it boots up it will ask you what do you want to do? repair or reload the disk, hit r for repair. it will issue you a c:prompt, type chkdsk, problem solved.
Andrew Dixon
January 2009