HRESULT 0x8031009E (FVE_E_REMOVAL_OF_NKP

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Constant name:

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Description:

Removal of the Network Key Protector certificate must be done using the Certificates snap-in.

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FVE_E_MULTIPLE_NKP_CERTS	FVE_E_INVALID_NKP_CERT

FVE_E_REMOVAL_OF_NKP_FAILED

What BitLocker has already established

At HRESULT 0x8031009E, BitLocker has determined that the Network Key Protector certificate was targeted for removal through an API path that does not manage the certificate object. The FVE_E_REMOVAL_OF_NKP_FAILED code does not by itself say that the volume master key is lost or that user data is corrupt.

Operational boundary: Network Unlock certificate management.

For FVE_E_REMOVAL_OF_NKP_FAILED, note: Network Unlock combines an OS-volume network key protector, UEFI DHCP support, domain policy, a WDS unlock server and an appropriate certificate. When diagnosing FVE_E_REMOVAL_OF_NKP_FAILED, remember: Certificate administration and a runtime unlock attempt are distinct operations. For FVE_E_REMOVAL_OF_NKP_FAILED, note: Preserve a TPM+PIN and recovery plan while changing Network Unlock. When diagnosing FVE_E_REMOVAL_OF_NKP_FAILED, remember: The feature is intended to ease managed reboots, not replace independent recovery.

Data to preserve before changing state

For FVE_E_REMOVAL_OF_NKP_FAILED, record Network Unlock certificate thumbprint, local certificate store, WDS configuration, protector list and removal tool. For FVE_E_REMOVAL_OF_NKP_FAILED, keep the full HRESULT and the first method that returned it because later cleanup calls can report a different state.
For FVE_E_REMOVAL_OF_NKP_FAILED, capture manage-bde -status and 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 FVE_E_REMOVAL_OF_NKP_FAILED failure and note the boot session, caller identity and management source; that evidence separates this BitLocker condition from a generic access or storage error.

Related state to rule out

Do not merge this incident with a failed Network Unlock request or invalid NKP certificate; this error concerns certificate removal ownership. If both appear with FVE_E_REMOVAL_OF_NKP_FAILED in one trace, preserve ordering because the first HRESULT normally identifies the prerequisite that caused later cleanup or fallback messages.

How to retest without losing evidence

Remove the certificate through the Certificates snap-in and update Network Unlock policy/WDS configuration in a coordinated change.

After correcting the FVE_E_REMOVAL_OF_NKP_FAILED prerequisite, refresh protection, conversion and lock state before one controlled retry; a cached UI message is not proof that the FVE_E_REMOVAL_OF_NKP_FAILED condition is still active.
Before a FVE_E_REMOVAL_OF_NKP_FAILED 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 -protectors -get C:\certutil -store My

For FVE_E_REMOVAL_OF_NKP_FAILED, diagnosis should be driven by the target object, effective policy and captured state snapshot rather than by a generic remediation applied to every BitLocker error.

State checks specific to FVE_E_REMOVAL_OF_NKP_FAILED

Checkpoint	How to interpret it for FVE_E_REMOVAL_OF_NKP_FAILED
Before the call	Record the target identity and the pre-call Network Unlock certificate management state. For FVE_E_REMOVAL_OF_NKP_FAILED, the decisive boundary is that the Network Key Protector certificate was targeted for removal through an API path that does not manage the certificate object.
At failure	Preserve Network Unlock certificate thumbprint, local certificate store, WDS configuration, protector list and removal tool. This proves whether FVE_E_REMOVAL_OF_NKP_FAILED came from BitLocker itself or from a wrapper translating another result.
After correction	Remove the certificate through the Certificates snap-in and update Network Unlock policy/WDS configuration in a coordinated change. The FVE_E_REMOVAL_OF_NKP_FAILED request should then advance without removing an unrelated recovery route.
After reboot or remount	Recheck protection, conversion and lock state for FVE_E_REMOVAL_OF_NKP_FAILED; a successful management call is incomplete if the next boot cannot unlock the volume.

Verification after the change

For FVE_E_REMOVAL_OF_NKP_FAILED, success means more than the absence of a dialog. Confirm that the condition represented by FVE_E_REMOVAL_OF_NKP_FAILED 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 FVE_E_REMOVAL_OF_NKP_FAILED request advances to another HRESULT, record both values in order because that transition reveals the next unmet prerequisite.

Microsoft references

Reference set for FVE_E_REMOVAL_OF_NKP_FAILED:

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