[Iforget]

I know there is heaps of software out there to supposedly get rid of already deleted files. Do any of these actually work?? or do you have to use dban or a low level format. I don't want to have to reinstall the operating system, or is this the only choice??
thanks.

[1SillyBilly]

Look at CCleaner. Download here
http://www.filehippo.com/download_ccleaner/

Cleans the following;

Internet Explorer
Temporary files, URL history, cookies, Autocomplete form history, index.dat.
Firefox
Temporary files, URL history, cookies, download history.
Opera
Temporary files, URL history, cookies.
Windows
Recycle Bin, Recent Documents, Temporary files and Log files.
Registry cleaner
Advanced features to remove unused and old entries, including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more... also comes with a comprehensive backup feature.
Third-party applications
Removes temp files and recent file lists (MRUs) from many apps including Media Player, eMule, Kazaa, Google Toolbar, Netscape, MS Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more...
100% Spyware FREE
This software does NOT contain any Spyware, Adware or Viruses.