Toggling Secure Boot / CSM
Also searched as: secure boot · csm · vanguard secure boot
What it does
Firmware settings controlling boot signature enforcement.
The honest verdict
Not a performance setting at all — but anti-cheats (e.g. Vanguard) REQUIRE specific states, and toggling carelessly can leave a PC unbootable. Match your anti-cheat's requirement and know the recovery path before touching it.
How Compy treats it
It's on Compy's refuse list. Compy will never apply this tweak — and if a guide already talked you into it, reversibility is the whole point of the app.
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 →