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- HP Community
- Desktops
- Desktop Boot and Lockup
- Not allowed to disable CSM HP Omen.

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04-09-2024 12:27 PM
Hello, about two weeks ago while trying to open up some apps I kept getting some errors about my secure boot option not being successfully verified, when reading this I went and checked the boot menu setup where I localized the secure boot option, it was already turned on so I turned it off and back on, this didn't work so I had to try plenty of Youtube tutorials until I read that the CSM could potentially be blocking secure boot from actually function.
My problem here is that the HP Boot Menu, does not allow me nor I have an available option to change these settings, note that this only happens with HP (?
I 100% must be allowed to change this settings since I didn't even turn it on, it was disabled by default, and now I cant use many programs that do require CSM disabled in order to verify Secure Boot Enabled.
Please a firm explanation and if possible a solution. This is a problem that has being going on for years but its 2024.
04-10-2024 08:23 PM
On the UEFI systems I use, you don't DISABLE CSM; instead, you enable UEFI boot. Since both can't be in place at the same time, enabling UEFI boot automatically disables Legacy/CSM boot.
I am a volunteer and I do not work for, nor represent, HP