Back up your stuff in safe-mode, if you can, then just format the drive. This is a tip for most anyone who generates alot of files or data that they wanna keep: Run your system (if you can) with two drives:
1) A 10-20gb system drive that holds Windows and your Apps.
2) A 40-60gb data drive for holding anything you would ever want to keep in the event of a system reformat.
This is effective in that if you have to reformat windows, it will only Format C: and not your data on the other drive.
Hope this helps folks