Not a UEFI problem perhaps, but I also had a dual-boot misery experience early last year. I kept on trying to make a Ubuntu and Windows 8 dual-boot set-up on th

Not a UEFI problem perhaps, but I also had a dual-boot misery experience early last year. I kept on trying to make a Ubuntu and Windows 8 dual-boot set-up on the same hard drive, and it would be fine until Windows Update would destroy my ability to boot into Ubuntu. It was my work computer and I lacked the tools (I also tried Super GRUB Disk, Boot Repair and a few others) to figure out why or how this was happening in a timely manner so just gave up in the end and virtualised Windows instead... It definitely seems like dual-booting (with the exception of Boot Camp) has become no more user-friendly in the last decade. It's as much of a pain as it's ever been.