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STATUS_FVE_VOLUME_EXTEND_PREVENTS_EOW_DECRYPT
Volume extension blocks EOW decryption
STATUS_FVE_VOLUME_EXTEND_PREVENTS_EOW_DECRYPT is a BitLocker conversion/layout status. It says device-encryption removal cannot proceed because the volume grew beyond the size tracked for the encryption-on-write removal path.
This points at storage management history: partition extension, image deployment, OEM layout changes, or disk-management tools. The encryption metadata and volume geometry must be interpreted together before attempting removal.
Diagnostic focus
- Check whether the OS volume was extended after encryption was enabled.
- Record original and current partition size, conversion state, and any imaging or resize operations.
- Avoid assuming recovery-key entry will fix this; the blocker is geometry/conversion state, not user authentication.
References
- Microsoft: BitLocker FAQ
- Microsoft: BitLocker preboot recovery screen
- Microsoft: Configure BitLocker
- Microsoft: BitLocker recovery overview
- Microsoft: BitLocker drive encryption for OEMs
- Microsoft: COM error codes for TPM, PLA and FVE
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