Ultra Fast boot caveats?

donalgodon wrote: The UEFI settings say it's only an option for Windows 8. I assume it will work with Windows 10, but I don't want to try it before I understand all the potential problems that might arise. What's the easiest way to get back to default UEFI boot if something goes wrong? I'm not booting in legacy mode at the moment, as I have in stalled W10 in UEFI mode and I'm using the AsRock AB350M Pro4 Micro ATX board. From what I've seen in my 3.1 BIOS/UEFI, only Ultra Fast boot is available. I don't want to try it until I'm sure I understand it. Can anyone offer any insight into these questions?

Ultra Fast works with Windows 10 fine, that description should be updated. The only requirement for Windows is UEFI booting, which Windows 10 supports.

Not much can go wrong as long as you have a UEFI booting Windows installation. The Fast Boot setting is smart enough to reset itself to Disabled if something is not right, like the video source not being GOP compatible, a UEFI booting requirement. That happens during POST.

Otherwise, if you have a problem with it, which I have never experienced, with the PC off just do a UEFI/CMOS clear with the board's jumper. Default Fast Boot setting is Disabled, you're fine. Just save a profile of your UEFI settings to restore them quickly.

I don't know why the "Fast" setting of Fast Boot was removed. It has been that way for several Intel mother board generations now, I believe that setting is no longer available in any new board's UEFI. One aspect of Fast Boot is it shortens the POST procedure, which can have side affects if you are not UEFI booting, which was not required when just using the "Fast" setting.