Reinstalled windows 10 on a Bitlocked drive thinking it was backed up. I have the decryption key. Any help pls?

[EzioAuditoredaFirenze]

Hi people,

So basically the drive I am talking about had windows Bit locker enabled, my colleague reinstalled windows on it thinking all of the contents had been backed up (but it was not). So my problem is now, I can use a recovery software to try to recover it (even tho I know it might not find all of the data). But in this case the data I am talking about had been encrypted with Windows Bit Locker and I have the decryption key of it. So I was thinking to try and recover the lost files (it will most likely be found as encrypted files), and somehow use the decryption key which I have to try and decrypt them.
The problem is, I don't know how to do it and I don't even know if there is a possibility to do it.
I am willing to try it since it is for a client of ours. And that is where I need the help of someone who has more experience with this.


Regards,
A fellow pc guy

 

[USAFRet]

If that encrypted volume has been overwritten (likely with an OS install), you are almost certainly out of luck.

But, try this:
https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/bitlocker-corrupted-drive/f2d6addf-5e9d-427e-9857-ffb5a750dfcb

https://www.m3datarecovery.com/bitlocker-drive-data-recovery/recover-deleted-lost-bitlocker-encrypted-partition.html

 

[iamacow]

You are 99& SOL. Other than rebuilding the partition and trying to unlock the drive. Hopefully the encryption table key is still recoverable. Otherwise all the data is going to be jiggerish.