I was running Windows XP home and received the read disk error message. I am not interested in the saving the HDD I just want to recover the data. I disconnected the HDD installed a new one with a fresh install of Windows 7. This worked fine. I then hooked the old drive back up and tried to boot the computer using windows seven but it would not boot with the old drive hooked up. I want to pull a few unbacked up files off the old drive. How can I make this work?