You can disable Secure Boot by restarting your PC and opening the Unified Extensible Firmware Interface (UEFI).

Disable Secure Boot through UEFI, but only if you really need to This article explains how to disable Secure Boot on your computer. This security feature, enabled by default and included in Unified ...

Secure Boot is a feature of your computer's UEFI that only allows approved operating systems to boot up.

I only know that secure boot is a feature that checks the system bootloader is properly signed by something/somebody authorized to do so. So it would make sense that ...