NTSTATUS 0xC043000C: meaning and diagnosis

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STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED the Secure Boot policy file has an older Antirollback Version than this device.

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STATUS_SECUREBOOT_PLATFORM_ID_MISMATCH	STATUS_SECUREBOOT_POLICY_UPGRADE_MISMATCH

STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED

STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED (NTSTATUS 0xC043000C) This NTSTATUS value reports that the policy anti-rollback version is older than the one accepted by the device.

What to check for STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED

Stop the downgrade attempt.
Check package selection, cache, and deployment versioning.
Use the newest authorized policy for this device.

Read-only checks for STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED

Get-SecureBootPolicy | Format-List

Secure Boot policy and UEFI-variable changes can affect whether a device boots. For STATUS_SECUREBOOT_POLICY_ROLLBACK_DETECTED, capture the current state first and use only the approved signed policy or OEM workflow for changes.

Microsoft: Confirm-SecureBootUEFI

Microsoft: Get-SecureBootPolicy

Microsoft: Viewing Code Integrity events

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