My son installed Ubuntu in a partition on his hard drive, but was having difficulty dual booting with Windows 7. To try to resolve this he installed MBR through Ubuntu into the partition Windows was using. Now he can't access Windows at all. He just gets a thing that looks like a prompt MBR1234FA_ but he can't type anything. Ubunu is working (on the second partition), but won't recognize that whole first partition (the one windows is on), and just labels it as "unknown", so he can't access any of his windows files. He tried the Windows repair on the install disk, but that tells him it can't repair it automatically. It can't find an operating system. Any ideas, anyone?