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I have a laptop that had Windows 7 previously installed but now has Windows 8.1. I want to dual boot with Ubuntu 13.10. But I was curious on how to do this properly and in the case that GRUB messes up my computer just delete it and restore it to the original Windows bootloader. Also DON'T recommend EasyBCD. I don't mind using GRUB but I want to be sure I can remove Ubuntu and GRUB.