http://git.savannah.gnu.org/cgit/grub.git/tree/util/grub.d/10_windows.in This looks like BIOS bootloader recognition with two distinctions: Windows NT/2000/XP (loader) Windows Vista/7 (loader) http://git.savannah.gnu.org/cgit/grub.git/tree/util/grub.d/30_os-prober.in This might be the one for EFI, but I can't tell how it distinguishes between them. Windows\ Vista*|Windows\ 7*|Windows\ Server\ 2008*) -- Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org