ERROR_SECUREBOOT_POLICY_NOT_SIGNED 0x80071148

Error code 4424 · HRESULT 0x80071148

WINDOWS

The Secure Boot policy is either not signed or is signed by a non-trusted signer.

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_POLICY_NOT_SIGNED is a Windows error code (system error 4424, returned as HRESULT 0x80071148) reported by Windows. Its official message is: “The Secure Boot policy is either not signed or is signed by a non-trusted signer.”

How to fix ERROR_SECUREBOOT_POLICY_NOT_SIGNED

  1. Run the affected program as administrator (right-click → Run as administrator)
  2. Check permissions on the target resource: Properties → Security → your account
  3. Check Event Viewer → Windows Logs → Security for the matching audit entry

Related errors

ERROR_SECUREBOOT_POLICY_NOT_AUTHORIZEDERROR_SECUREBOOT_POLICY_PUBLISHER_NOT_FOUNDERROR_SECUREBOOT_POLICY_VIOLATIONERROR_SECUREBOOT_POLICY_UNKNOWNERROR_SECUREBOOT_NOT_ENABLEDERROR_SECUREBOOT_INVALID_POLICYERROR_SECUREBOOT_FILE_REPLACED

Source: Microsoft WinError.h

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