Hi,
I have a similar problem as many other forum members have posted around secure boot violation. I've tried all methods that i found including creating usb with efi and boot folders etc, even unplugged the main and CMOS batteries and reconnected them, however still whenever i reboot my laptop(2021 15 advanced) secure boot enables itself and error messaged pops up.
Best resolution i found online was to either re-establish keys or re-flash bios which there are no instructions for both.
I'd appreciate if someone could tell me if they found an actual solution to this annoying problem? Thank you

