[Notebook] Troubleshooting - Secure Boot Violation Error at Startup

If you encounter a ‘Secure Boot Violation’ message during startup and are unable to enter the operating system, please refer to the following solutions.

 

To protect user's systems from malware attacks, ASUS Notebooks implement the Microsoft Secure Boot feature by default. This feature performs a legal loader check to boot into the OS. 

As Windows 7 does not support Secure Boot (http://technet.microsoft.com/en-us/library/hh824987.aspx), with the update of KB3133977, the system might detect inconsistent OS loader keys, resulting in boot failure.

In Windows 8/10/11 PC, the system might detect inconsistent OS loader keys and result in boot failure because you had the OS re-installed, installed with an OS other than the preinstalled version.

Please change the Secure Boot settings Bioses configuration as outlined in the steps below, this will allow the system to boot into the operating system successfully.

 

  1. Enter the Bioses configuration.
    With the computer powered off, press and hold the [F2] key, then press the [Power button]. Release the [F2] key once the Bioses screen appears. You may refer to this video for guidance on entering the Bioses configuration. How to enter the Bioses configuration.
  2. Once in Bioses, follow this article to Disable Secure Boot: How to Enable/Disable Secure Boot.
  3. After disabling Secure Boot, your computer should boot into Windows normally.
  4. Once in Windows, navigate to (C:\Windows\Boot\EFI) and check if the 「SecureBootRecovery.efi」 file is present.
    Note: If your computer does not have the SecureBootRecovery.efi file, you may skip the following steps.
  5. Prepare a USB flash drive formatted to FAT32. If you are unsure how to convert to FAT32, refer to this article: How to convert the USB flash drive format to FAT32.
    Then, in the root directory of the USB flash drive, click [New Folder]① and name the folder [EFI]②.

    Enter the EFI folder, click [New Folder]③, and name the folder [BOOT]④.
  6. Copy the 「SecureBootRecovery.efi」 file from your computer into the BOOT folder on the USB drive.
    Then, right-click on [SecureBootRecovery.efi]⑤ and select [Rename]⑥.
  7. Rename the SecureBootRecovery.efi file to 「bootx64.efi」⑦.
  8. Boot the computer from the USB flash drive.
    With the computer powered off, press and hold the [Esc] key, then press the [Power button]. Release the [Esc] key when the boot menu appears. For more information, please refer to this article: How to Boot from a USB Flash Drive/CD-ROM (Changing Boot Options).
  9. In the boot options, select your USB flash drive to start⑧.
  10. When the system displays the following message, please wait for the computer to restart automatically.
  11. Once the system boots into Windows, please re-enter the Bioses configuration and Enable the Secure Boot function again. For detailed instructions, refer to the article: How to Enable/Disable Secure Boot.

 

 

If your problem cannot be solved, please contact ASUS Product Support for further information.