I created an image backup of my system/boot partition with Acronis TrueImage. Now when restoring the backup there are two checkboxes: first, the system/boot partition and then "MBR and Track 0". I can check one or the other, I can't check both of them, they seem to be mutually exclusive. Is it meant to be that way or is something wrong with my system or backup? Why can't I restore both of them (the image + "MBR and Track 0") at once?