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FVE_E_FAILED_AUTHENTICATION
FVE_E_FAILED_AUTHENTICATION means that BitLocker could not unlock the drive with the key material that was supplied. The cause can be a wrong recovery password, a mismatched key protector, or a recovery method that does not belong to this volume.
How to investigate
- Match the recovery key ID shown by BitLocker to the recovery information stored for the affected volume before entering a recovery password.
- Distinguish a 48-digit recovery password from a startup or recovery key file; they are different protector types.
- Use only a verified recovery source and avoid repeated untracked guesses that could complicate incident handling.
Microsoft: BitLocker recovery overview
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