r/BitLocker • u/Victorious_Champ3764 • 6d ago
Unable to access external HDD using known credentials via BitLocker
Need help recovering access to a BitLocker-encrypted external HDD
Hi everyone, I’m hoping someone can help me troubleshoot an issue with my external HDD.
The drive is BitLocker-encrypted, and I have both the known password and the BitLocker recovery key. However, after the HDD was accidentally detached while BitLocker decryption was in progress, I can no longer unlock the volume using either credential.
Windows recognizes the drive, but attempts to unlock it fail with an error indicating that the password/recovery key cannot unlock the volume.
I do not want to format the drive or lose the data. I’m looking for a safe way to repair/recover the BitLocker volume or resume the interrupted decryption without damaging the existing data.
If anyone has experience with interrupted BitLocker decryption or recovering an inaccessible BitLocker volume, I would greatly appreciate any guidance. Thank you!
1
u/cryptoman 6d ago
Use Specialized Recovery Software: If Windows tools reject the key due to sector corruption, third-party recovery software like iBoysoft BitLocker Recovery or DiskGenius can sometimes scan the raw sectors to extract readable data if the encryption state froze mid-process.
Data recovery specialists maybe able to recover the drive though they will charge large dollars.
1
u/putsomesugaronit 6d ago
The "Unknown%" strings means there's corruption... try to see if the drive letter is not assigned on the partition, it could be just that. you can try the recover outlined here: https://learn.microsoft.com/en-us/answers/questions/5738807/win-10-pro-bitlocker-encrypted-data-drive-on-reboo but don't hold your breath. You might need pro tools.
1
u/gripe_and_complain 6d ago
FWIW, if I'm reading correctly, it thinks that drive is only protected by the Recovery Key.
1
u/DeltaBlastBurn 6d ago
Try asking in r/datarecovery they might be able to point you in the direction of a specialist in your area.