ERROR_SECUREBOOT_NOT_SUPPLEMENTAL_POLICY 0x80071153

Error code 4435 · HRESULT 0x80071153

WINDOWS

Base Secure Boot policy file can not be loaded as a Supplemental Secure Boot policy.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_SECUREBOOT_NOT_SUPPLEMENTAL_POLICY is a Windows error code (system error 4435, returned as HRESULT 0x80071153) reported by Windows. Its official message is: “Base Secure Boot policy file can not be loaded as a Supplemental Secure Boot policy.”

How to fix ERROR_SECUREBOOT_NOT_SUPPLEMENTAL_POLICY

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_SECUREBOOT_NOT_BASE_POLICYERROR_SECUREBOOT_NOT_ENABLEDERROR_SECUREBOOT_REQUIRED_POLICY_FILE_MISSINGERROR_SECUREBOOT_POLICY_UPGRADE_MISMATCHERROR_SECUREBOOT_POLICY_ROLLBACK_DETECTEDERROR_SECUREBOOT_PLATFORM_ID_MISMATCHERROR_OFFLOAD_READ_FLT_NOT_SUPPORTED

Source: Microsoft WinError.h

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