Comment by spider-mario

Mine (Acer Aspire One 756) had an EFI disguised as a BIOS. I only discovered it was EFI after a few years, when I inserted some bootable flash drive, opened the boot menu and saw an EFI entry for the flash drive there. Other than that, it’s as if they were trying to keep the EFI a secret (nothing in the settings hinted at it and I couldn’t get it to boot in EFI mode by default).