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STATUS_FVE_OVERLAPPED_UPDATE
This is a concurrency conflict in BitLocker volume control state. It is not evidence that the volume’s ciphertext is corrupted and should not be handled as a storage-media failure.
Serialize BitLocker management operations for the target volume. Check for concurrent protector changes, conversion actions, policy refresh, management agents, or scheduled maintenance; then re-query state and retry only after the competing update has completed.
The useful diagnostic record is the pair of operations that overlapped, not merely the final error code. Retrying without removing the competing operation can produce the same race again.
Microsoft NTSTATUS reference | BitLocker operations guide | manage-bde reference
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