Master file table corrupted? Windows 10

  m800afc 22:52 11 Apr 2017

Today when I booted my computer I found that unwanted changes had been made. My Blue ray disc had its drive letter, K, changed to H. The HDD that was Drive H, has become Drive Z, which Disk Management shows as a new, formatted, empty drive. There was about 500Gb of data, nearly all audio books. Using Recover pro, ther are still files on the drive. I am wondering if a new Master file table can be constructed for this drive? Any help would be gratefully received. Thanks

  Fruit Bat /\0/\ 15:59 12 Apr 2017

Testdisk will do it but its not an easy program to use.

HAve you tried just changing the drive letters back again?

as long as you do not write to the drive then the files will not be overwritten and should be recoverable.

  m800afc 01:01 22 Apr 2017

I have changed the drive letter back to what it was, but it still shows as an empty formatted disk. I will try Testdisk and see how I get on. Any other ideas?

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