My 4-month-old Windows 8 computer won't boot anymore. I'm trying to back up the files on the hard drive before I send it in to get it fixed, so I've hooked it up to my old xp computer via sata port. But when I click on the D drive, the only things on it are a shortcut to My Computer, and a padlock icon that says recovery; none of my documents/files show up. I need to back these files up somehow so I don't lose them.