Windows 8 Update Might Delete GRUB2 and Set UEFI to Secure Boot
A user who was dual-booting Xubuntu and Windows 8 has reported that one of the latest updates for Windows 8 has actually deleted the GRUB and switched UEFI to secure boot.
Linux users are not strangers to the problems caused by dual-booting. It’s a well-known fact that if you install Windows on a PC or laptop that already has a Linux operating system it will delete the boot loader. It can be fixed easily, but the GRUB, for example, recognizes Windows operating systems and integrates them so that the user is not affected.
A Linux and Windows 8 user has reported on Reddit that one of the updates performed by Microsoft's operating system deleted the GRUB boot loader and set UEFI to secure boot. Moreover, after he restored GRUB2 (which is done pretty easily, as illustrated in our tutorial) now there are three entries besides the Linux one.