I feel I should elaborate on UEFI or U effing joking as I liked to call it.
What did you learn in the early days of Linux and dual boot? Install windows then Linux so you don't have to boot with a boot disk to reinstall lilo (showing my age now), so imagine my surprise when after installing windows I now have to change a bios setting that not only means I have to reinstall windows but I also wasted a load of time with all the updates and crap. It's not a stretch of the imagination to think Microsoft will try to pull another trick. I can't wait for the day I don't have to dual boot because I have to use the CAD MS Paint software included in windows.