What do you do when a Microsoft Windows PC starts acting strange? Perhaps it has been infected with a virus or the hard drive is beginning to fail.
Ironically you can use the Linux operating system to rescue the PC.
As long as you are able to create a bootable CD/DVD/USB Drive, you can load Linux and hopefully repair the PC, if not totally, at least to the point where you can recover data files.
This IT News article by Chris Hoffman is an excellent step-by-step guide on fixing your PC with Linux.