Question ASUS B550 :- Secure boot error on event manager

May 26, 2025
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Question for the more indept Windows users...

Been getting this error consistently on Event viewer and just trying to resolve them now.

The Secure Boot update failed to update a Secure Boot variable with error Secure Boot is not enabled on this machine.. For more information, please see https://go.microsoft.com/fwlink/?linkid=2169931

Event code 1796. AS usual Microsoft do not really explain the issue. Or give a reasonable solution.

https://support.microsoft.com/en-us...e-events-37e47cf8-608b-4a87-8175-bdead630eb69 as this post has a loop link, typical of MS support. Especially with > . For more information, please see https://go.microsoft.com/fwlink/?linkid=2169931 which just loops itself.

going to try this,
1. Check BIOS/UEFI Settings:
  • Enter your BIOS/UEFI during startup (usually by pressing Del, F2, F12, or Esc).
  • Navigate to the Boot section and ensure Secure Boot is enabled.
  • Verify that the boot mode is set to UEFI.
  • If CSM (Compatibility Support Module) is enabled, try disabling it.
  • Save changes and restart.
 
Last edited by a moderator:
Just updated my BIOS today, after seeing a new one on the website.

https://www.asus.com/motherboards-c...helpdesk_bios?model2Name=TUF-GAMING-B550-PLUS

In my BIOS, I had CSM Boot CSM Support module
Lauch CSM that is disabled.

In the boot / Secure boot section
Secure boot state - User
Platform Key(PK) state - unloaded
OS type = was set to OTHER / Changed to Windows UEFI

Saved and rebooted after flashing my BIOS now to 3621.

Version 3621
16.16 MB
2025/04/07

My PC been running since updated BIOS version and settings, so far not seeing this error in EV Yet!

Normally i would notice it hanging my PC completely sometimes my mouse can move, other times just hard locks. Unless we check EV every day half these error messages get missed.