If your hard disk data corrupted or lost then you can try Windows Data Recovery Tool. It is proficient tool to repair data and information from bad sectors of corruption. This software can recover data from most of the disaster situations like crashed hard disk, formatted and reformatted drive, external drive like PEN, SATA, USB, etc.
Key features of Software
1.Recover virus corrupted data
2.Recover data from crashed hard disk
3.Recover data from corrupted, deleted, formatted Windows partitions
4.Recover data from FAT/NTFS file system
5.Recover image, audio, video etc
6.Recover data from PEN, ZIP, SATA, USB, IDE, EIDE drives
7.Supported by all Windows OS
Free trial version :-
http://www.softmagnat.com/windows-data-recovery.html