Partition Recovery by DiskInternals - Software to recover data or lost/deleted partition.
Partition Find and Mount - Partition Find & Mount implements a new concept of deleted or lost partition recovery.
Udevil - Udevil is software that lets you mount a storage device and create a utility to control it with a ton of optimization options.
DMDE - DM Disk Editor and Data Recovery (DMDE) is a disk editor which can help you to understand NTFS.
Hetman Partition Recovery - Undelete deleted files and folders, recover files from formatted, corrupted, repartitioned and...
PTPdrive - PTPdrive is a drive letter mapping tool for devices like cameras and phones connected in MTP mode.