1)   Data Nuker 2.0.0.1
SecurelyShreds sensitive files so they cannot be recovered or undeleted. Includes disk free space shredder - destroy previously deleted files on your hard drive. Shred Files, Folders, Recycle bin, drag & shred, DoD conform. Shred locked files & more.

 2)   ArchiCrypt Shredder 3.1.2
In addition to the permanent deletion of sensitive data, ArchiCrypt Shredder cleans the free space on hard drives, removes tell-tale file fragments from cluster tips, wipes out traces from the last online surfing and deletes entire hard drives.