What does Windows error code 4429 (ERROR_SECUREBOOT_POLICY_MISSING_ANTIROLLBACKVERSION) mean?

ERROR_SECUREBOOT_POLICY_MISSING_ANTIROLLBACKVERSION

ERROR_SECUREBOOT_POLICY_MISSING_ANTIROLLBACKVERSION (LRESULT 0x0000114D) This Win32 error means the Secure Boot policy does not contain the anti-rollback version required by the device.

What to check for ERROR_SECUREBOOT_POLICY_MISSING_ANTIROLLBACKVERSION

• Obtain a rebuilt or corrected policy from the authority that signs and publishes it.
• Verify the version sequence used by the policy release process before deploying it again.
• Do not attempt to work around the check by reinstalling an older policy or changing protected UEFI variables manually.

Read-only checks

Get-SecureBootPolicy | Format-List

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

Microsoft: Get-SecureBootPolicy

Microsoft: Set-SecureBootUEFI

Microsoft: Secure Boot

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