secure boot failed, – Microsoft Q&A

Hi Dimutha Jayasinghe,

Since Windows is currently able to start when Secure Boot is disabled, the issue may be related to how the firmware is handling the Secure Boot key database after the key reset. Based on your Acer model, it may be worth checking whether a newer BIOS version is available from Acer before making further Secure Boot changes. Updating the BIOS can help ensure compatibility with the latest Secure Boot certificates.

You can try the following checks:

  1. Visit Acer Support and check for the latest BIOS/UEFI update for your exact Acer Aspire A315-57G model.
  2. Install the BIOS update while Secure Boot remains disabled.
  3. Restart and enter BIOS setup.
  4. Look for an option such as Install Default Secure Boot Keys, Restore Secure Boot Keys, or Key Management.
  5. Save the changes and then try enabling Secure Boot again.

If Secure Boot still fails after the BIOS update, I recommend contacting Acer Support for model-specific firmware guidance, as Secure Boot key management can vary between manufacturers and BIOS versions.

I hope this helps point you in the right direction.

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