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FVE_E_PUBKEY_NOT_ALLOWED
The failed prerequisite
FVE_E_PUBKEY_NOT_ALLOWED / 0x80310058 marks a rejected BitLocker transition: effective policy or volume type disallows a public-key certificate protector for this drive.
Note: Policy troubleshooting must use the effective result, not a screenshot of one editor. When diagnosing this result, remember: Domain GPO, local policy, provisioning packages and MDM can all populate BitLocker settings, and an existing protector can predate the current policy.
Diagnostic map
| Layer | policy and authorization |
|---|---|
| Proof to collect | volume type, effective certificate-protector policy, certificate EKU, provider, private-key availability and requested protector method |
| Different condition | an invalid certificate or missing private key, which are checked only after the protector type is permitted |
| First safe change | use an allowed protector or change the managed policy after confirming recovery and compatibility requirements |
Note: BitLocker evaluates the target volume together with effective Group Policy or MDM policy, Windows edition, caller authorization and the requested protector or management method. When diagnosing this result, remember: A policy HRESULT therefore describes a rejected configuration decision, not evidence that encrypted sectors are damaged.
A focused verification sequence
- record volume type, effective certificate-protector policy, certificate EKU, provider, private-key availability and requested protector method. Keep the full HRESULT and the first method that returned it because later cleanup calls can report a different state.
- capture
manage-bde -statusand the protector inventory for the exact volume GUID, not only the drive letter, because letters can change in WinRE, clusters and deployment environments. - Export BitLocker operational events for the result failure and note the boot session, caller identity and management source; that evidence separates this BitLocker condition from a generic access or storage error.
Recommended operational response
- use an allowed protector or change the managed policy after confirming recovery and compatibility requirements.
- After correcting the result prerequisite, refresh protection, conversion and lock state before one controlled retry; a cached UI message is not proof that the condition is still active.
- Before a this result remediation deletes protectors, changes firmware mode, resizes partitions or decrypts a production drive, verify that an independent recovery method is available and escrowed in the intended directory or account.
manage-bde -status
gpresult /h bitlocker-policy.html
Interpretation checkpoint
This result identifies a condition but not every owner of the surrounding state. Preserve the original caller, volume GUID and event sequence so the correction is applied at the right layer.
State checks specific to it
| Checkpoint | How to interpret it for it |
|---|---|
| Before the call | Record the target identity and the pre-call policy and authorization state. The decisive boundary is that effective policy or volume type disallows a public-key certificate protector for this drive. |
| At failure | Preserve volume type, effective certificate-protector policy, certificate EKU, provider, private-key availability and requested protector method. This proves whether it came from BitLocker itself or from a wrapper translating another result. |
| After correction | Use an allowed protector or change the managed policy after confirming recovery and compatibility requirements. The request should then advance without removing an unrelated recovery route. |
| After reboot or remount | Recheck protection, conversion and lock state for it; a successful management call is incomplete if the next boot cannot unlock the volume. |
Verification after the change
Success means more than the absence of a dialog. Confirm that the condition represented by it now matches the intended design, that the protector inventory has not lost an independent recovery route, and that the next reboot or remount can unlock the volume. If the request advances to another HRESULT, record both values in order because that transition reveals the next unmet prerequisite.
Official references
Reference set for it:
- Microsoft: BitLocker CSP reference
- Microsoft: BitLocker operations guide
- Microsoft: COM error codes for FVE
- Microsoft: Configure BitLocker policy
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