My issue on my 2014 Mac Mini mid-range: 1. Plug in a Windows USB stick, and boot up the mac while holding down the option key; the boot menu shows my regular options, plus "Windows." 2. Do the same thing, but reset the NVRAM first; on the first boot up after resetting the NVRAM, the boot menu shows my regular options, plus "Windows," plus "EFI Boot," which is what it's actually supposed to do (I think). Can anyone with a similar machine confirm if they have the same issue, where the EFI boot option doesn't come up unless you reset the NVRAM first? Trying to determine if it's a hardware issue with my machine or a firmware issue affecting this model.