I just bought an Inspiron 5559 and swapped an SSD for the HD and reinstalled 10 via a USB that I created with RUFUS. I realized that it will only boot with UEFI disabled and Legacy enabled. I'd like to use UEFI, if possible, but I can't figure out what I did wrong. The defaults in the UEFI/BIOS screen disable legacy, but then the SSD won't boot. I used the defaults for RUFUS. Any help would be greatly appreciated.