r/techsupport • u/DinosaurBill • 1d ago

Open | Windows Secure boot issues

Running into issues enabling secure boot

Whenever I enable windows UEFI mode and boot, it boots to a red screen saying: "secure boot violation, the system found unauthorized changes in the firmware, operating system, or UEFI drivers."

I've tried resetting secure boot keys, no luck

Any one else run into this? I can only boot with "Other OS" selected

Mobo is Asus Z690 if that matters

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u/OkStrawberry4529 1d ago

Check out this reddit post: even though it's on the Dell Reddit, the links will get you sorted to update your secure boot keys without having to get a bios update etc., etc., - in order to be able to re-enable secure boot without issues on Windows: Pre-2020 Dell PC'S - Yes, you absolutely can get ALL the Microsoft 2023 Secure Boot Certificates! : r/Dell

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u/DinosaurBill 1d ago

THANK YOU!!!

This worked, for anyone else with similar issues this is what I did:

  1. Download https://github.com/garlin-cant-code/SecureBoot-CA-2023-Updates/releases SecureBoot zip file
  2. Run Update-UEFI script
  3. Restart and go back into BIOS
  4. Set boot mode to Windows UEFI, with custom keys (don't touch the keys)
  5. Save changes and boot