Eraser is an advanced Security tool(for Windows), which allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns. Works with Windows 95, 98, ME, NT, 2000, XP and DOS. Eraser is Free Software and its source code is released under GNU General Public License.

An excellent tool for keeping your data really safe, if youve deleted it..make sure its really gone, you dont want it hanging around to bite you in the ass.