NTSTATUS 0xC0430008 (STATUS_SECUREBOOT_POLICY_NOT

Status / error code:

Category:

Constant name:

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Facility:

Operating System:

Description:

the device is not authorized to load the supplemental Secure Boot policy.

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STATUS_SECUREBOOT_FILE_REPLACED	STATUS_SECUREBOOT_POLICY_UNKNOWN

STATUS_SECUREBOOT_POLICY_NOT_AUTHORIZED

STATUS_SECUREBOOT_POLICY_NOT_AUTHORIZED (NTSTATUS 0xC0430008) This NTSTATUS value reports that the supplemental Secure Boot policy is not authorized on this device.

What to check

Verify policy identity and authorization under the active base policy.
Confirm the package belongs to the intended device deployment set.
Collect policy-load events before replacing any policy artifact.

Read-only checks

Get-SecureBootPolicy | Format-List

Get-SecureBootUEFI -Name DB | Format-List

Authorization is evaluated against the policy state already active on the device. Compare the base-policy identity and the supplemental-policy identity, then use Code Integrity events to determine why this particular supplement was rejected.

Microsoft: Confirm-SecureBootUEFI

Microsoft: Get-SecureBootPolicy

Microsoft: Viewing Code Integrity events

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