I have a BIOS machine which is dual boot Windows 7/Fedora 22. I just
upgraded Windows from 7 to 10, but grub2 still detects it as "Windows 7
(loader)", same as before, even after running "grub2-install /dev/sda" and
"grub2-mkconfig -o /boot/grub2/grub.cfg" in F22. Other than the mislabel,
everything seems fine. Is it normal for grub2 to not detect the correct
Windows version? What about Windows 8, which has been around for a while?