Secure Boot
Also searched as: secure boot · secureboot
What it means
A firmware feature that only lets trusted, signed code load at startup. It's a security gate, and some anti-cheats now require it to be on.
More detail
It isn't a performance setting at all, but games like Valorant won't run without it, so it ends up on gamers' radar. Toggling it carelessly — especially alongside the old CSM compatibility mode — can leave a PC that won't boot. Match what your anti-cheat asks for, and know the recovery path before you change it.
The Compy Blackbook holds 174 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →