Make sure you have BIOS set to load defaults, apply and then go back and set it to
UEFI
AHCI
Legacy Option ROMs off
Secure Boot off
CPU XD support enabled
Thank you for your contribution here. Sorry to see you go.
I, too, have a few MacBook Pro's but that doesn't stop me from being here.
It's a hobby and I have fun so...I think we'll be seeing you around.
If not, good luck.
Cheers!