To be fair though to Apple, at least it is standardized. Have you tried to turn off Secure Boot? Note: depending on the specific motherboard it could be: - Wi

To be fair though to Apple, at least it is standardized. Have you tried to turn off Secure Boot? Note: depending on the specific motherboard it could be: - Windows Command-line (some Surfaces) - a simple switch on the BIOS configuration (usually on desktop motherboards which are sold as a part) - set first a password to the setup and then switching it off (notably some Acer laptops) - removing a screw physically, setting a setup password and switching it off (some Acer laptops probably copied from ChromeOS SKUs) - Setting secure boot to custom and then clearing the key database (usually business computers) - (Technically incorrect) setting it to BIOS/CSM mode - Shout to heavens because that OEM has somehow hard-baked secure boot on the system and does not have CSM options (company shall remain unnamed but the name ends in L)