Ive been using this tools disc for as long as I can remember.

Hiren's Boot-CD is a tools and utility CD to help and assist in data recovery, password recovery, virus and spy ware removal, registry recovery and much much more. Not only does it do all these things. it sometimes gives you a few different application options, so you can try a few different methods as well.

• You can go and see his website http://www.hiren.info/
• You can download the boot disc http://www.hirensbootcd.net/

I also recommend checking out the quick link area which has links to a few tips and guides.
All very useful.