JpegDigger - JpegDigger is designed for recovering deleted photos from memory cards but it works on hard drives...
Partition Recovery by DiskInternals - Software to recover data or lost/deleted partition.
Recuva - Accidentally deleted an important file? Lost files after a computer crash?
Partition Find and Mount - Partition Find & Mount implements a new concept of deleted or lost partition recovery.
myPhoto Recovery - myPhoto Recovery is a utility for recovery of lost and deleted photos.
Lazesoft Recovery Suite - Lazesoft Recovery Suite is a very easy to use ALL-IN-ONE boot disk that repair your crashed Windows, recover data from deleted, formatted, damaged partition, clone or backup disk, reset your forgotten Windows password.