Boot manager has been blocked by the current security policy?

Question

linux

When I installed Manjaro after opensuse, this miracle came out... boot
manager has been blocked by the current security policy

Answer 1

You need to enter the BIOS settings, usually in the Boot submenu and remove this UEFI that is incomprehensible to anyone, replacing it with Legacy or Normal. And then everything will be fine.

Answer 2

Look in the BIOS settings for the item about Secure boot and translate it to "Other OS" or "Off".

Answer 3

And how to beat if the bios does not enter?