| Previous | Next |
| FVE_E_CONV_WRITE | FVE_E_CLUSTERING_NOT_SUPPORTED |
FVE_E_KEY_REQUIRED
FVE_E_KEY_REQUIRED means that the operation would leave the encrypted volume without a required BitLocker key protector. BitLocker prevents removing the last usable protector in this situation.
How to investigate for FVE_E_KEY_REQUIRED
- List the volume protectors and identify which one the request attempted to remove.
- Add and verify an approved replacement protector before removing an obsolete one.
- Back up recovery information before any protector change and retain it outside the encrypted volume.
Diagnostic interpretation
This result has the HRESULT value 0x8031001D. AllStat records the condition as “One or more BitLocker key protectors are required. You cannot delete the last key on this drive.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the fve / key / required operation.
- Preserve the first failure in the call chain; a later HRESULT can describe cleanup rather than the original fve / key / required condition.
Retry and recovery
Retry this result only when the owning API documents a transient state or after the condition described as “One or more BitLocker key protectors are required. ” has changed.
Looking for a different code? Search another status or error code.