How to desable secure boot permanently

[Omerta2]

Hello,

I want to use an old computer, originally running Windows 10 or maybe 11, as a NAS. I successfully disabled Secure Boot to install Open Media Vault. I reorganized the boot order, so it’s supposed to start with the OS. However, my problem is that Secure Boot doesn’t stay disabled. Now, when I get the message saying something like "There are boot changes pending. To apply them, enter the code and press enter," the cursor is stuck at the end of the HP address,  nothing prints on the screen. I tried typing the code blindly (like in a Linux terminal when entering a password), but it doesn’t work. I can't boot into my new OS.

If anyone has a solution...

[Omerta2 · Accepted solution]

I found what was wrong, even though I set my keyboard on azerty while installing the os, at this point the keyboard set up is not taken account. My keyboard is on querty, here is why...