There are many tutorials regarding how to restore GRUB into the MBR following a Windows install, even how to make a dedicated GRUB partition. However, I have installed Ubuntu after Windows, and I am now presented with GRUB upon boot, as GRUB was written to the MBR. Is it possible to restore the W7 bootloader into the MBR and add a boot option for Ubuntu as one of the options in the W7 bootloader?