I have a 320 GB WD hard disk and recently some folders got corrupted. I tried to use HDD Regenerator to fix the hard disk. While it was repairing, it was interrupted.
Now the hard disk won't mount and no drive letter shown, yet it is visible as an external device in the Safely Remove Device menu. When I use that tool again it says "Master Boot Record is corrupted". In Disk Management it asks to initialize the disk, but that doesn't work.
How can I fix the MBR and recover my hard disk?
NB: chkdsk and scandisk don't work as it doesn't have a drive letter.