overwrites files in the recycle bin so the data cannot be recovered.
RegClean Pro

RegClean Pro fixes invalid registry entries in a few simple clicks.
Clean and Go

Disables the mouse or keyboard while you clean them
Wipe

delete browsing history, cookies, cache, temporary files, and other tracks.
Batik

Java to let you create a custom utility to find and delete all junk files.

filecleaner erases any internet history plus it permanently erase files