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FVE_E_PROTECTOR_CHANGE_MAX_PIN_CHANGE_ATTEMPTS_REACHED
Where the operation stops
The value 0x803100A3, named FVE_E_PROTECTOR_CHANGE_MAX_PIN_CHANGE_ATTEMPTS_REACHED, is returned when BitLocker has throttled PIN changes after too many failed current-PIN attempts. It belongs to the key-protector lifecycle part of BitLocker rather than to generic file I/O.
Never capture PINs, passwords or recovery passwords in logs. IDs, types, policy, call result and attempt counters are sufficient for most diagnosis. A BitLocker key protector wraps access to the volume master key. TPM, TPM+PIN, startup key, recovery password, password, certificate and Network Unlock protectors have different volume and policy rules; changing one is not the same as decrypting the volume.
| Question | What to verify |
|---|---|
| Which object failed? | The exact volume GUID, protector GUID, certificate or API target supplied by the caller. |
| Which state matters? | change-attempt timestamps, caller identity, protector GUID, related BitLocker events and whether automated management is repeatedly retrying. |
| What is the nearest false lead? | TPM anti-hammering during preboot unlock; this counter applies to the PIN-change workflow. |
Build a minimal diagnostic record
- Record change-attempt timestamps, caller identity, protector GUID, related BitLocker events and whether automated management is repeatedly retrying.
Change only the failed prerequisite
stop retries, use the administrator reset path, and fix any script or user workflow that is submitting stale PIN data.
manage-bde -protectors -get C:
powershell -NoProfile -Command "Get-BitLockerVolume C: | Format-List KeyProtector,ProtectionStatus,VolumeStatus"State checks specific to FVE_E_PROTECTOR_CHANGE_MAX_PIN_CHANGE_ATTEMPTS_REACHED
| Stage | How to interpret it |
|---|---|
| Before the call | Record the target identity and the pre-call key-protector lifecycle state. BitLocker has throttled PIN changes after too many failed current-PIN attempts. |
| At failure | Preserve change-attempt timestamps, caller identity, protector GUID, related BitLocker events and whether automated management is repeatedly retrying. This proves whether this result came from BitLocker itself or from a wrapper translating another result. |
| After correction | Stop retries, use the administrator reset path, and fix any script or user workflow that is submitting stale PIN data. |
Official documentation
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