What does NTSTATUS 0xC021003C (STATUS_FVE_VOLUME_EXTEND_PREVENTS_EOW_DECRYPT) mean?

 
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STATUS_FVE_DEVICE_LOCKEDOUT STATUS_FVE_NOT_DE_VOLUME

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


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