Free Disk Utilities
Recuva
Recuva (pronounced "recover") is a freeware Windows utility to restore files that have been accidentally deleted from your computer. This includes files emptied from the Recycle bin as well as images and other files that have been deleted by user error from digital camera memory cards or MP3 players. It will even bring back files that have been deleted by bugs, crashes and viruses!
http://www.recuva.com/
TestDisk
TestDisk is a powerful data recovery utility! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally erasing your Partition Table). Find more here:http://open-source.onestop.net/2006/03/testdisk.html
http://www.cgsecurity.org/wiki/TestDisk
WinDirStat
WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows (all current variants).
http://windirstat.info/
Eraser
Eraser is a secure data removal tool for Windows. It completely removes sensitive data from your hard drive by overwriting it several times with carefully selected patterns. 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.
http://sourceforge.net/projects/eraser/
TrueCrypt
Free open-source disk encryption software for Windows XP/2000/2003 and Linux.
http://www.truecrypt.org/
HDCleaner
The easiest and most comprehensive way to keep your PC running smooth and error free. There may be many junk files in your hard disk when your computer is running. They would make the computer system work slowly and astatically. HDCleaner uses a highly intelligent engine to scan your hard disk & improve PC performance!
http://home.tiscali.de/zdata/hdcleaner_e.htm
