Have a single file you want to retrieve from an old Windows restore, without having to restore the entire Windows? Here's a step-by-step:
http://www.howtogeek.com/76212/how-to-mount-a-system-restore-point-to-restore-a-single-file/
All the fun tekkie stuff I can't put on my family blog. How to's for the wrench junkies out there.