After I installed 13.04, I was only able to boot into Windows 8. Ran boot-repair, was then able to boot into 13.04, but no longer could boot into Windows, when attempting to boot got "Preparing Automatic Repair" and computer would hang. Ran boot-repair again, obviously didn't know what I was doing, now computer will not boot at all, don't get Grub menu. Here's my Boot Info URL -