Eraser

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 98, ME, NT, 2000, XP, Vista, Windows Server 2003 and Server 2008.

Eraser is Free software and its source code is released under GNU General Public License.

• It works with Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008,Windows 98, ME, NT, 2000 can still be used with version 5.7!
• It works with any drive that works with Windows
• Secure drive erasure methods are supported out of the box
• Erases files, folders and their previous deleted counterparts
• Works with an extremely customisable Scheduler

Download link:-http://eraser.heidi.ie/download.php