I tried to intall backtrack using a bootable cd. I think I clicked the option and it overwrote my windows 7. How do I get that back? I do not have a windows restore cd. Backtrack did not actually install at the time it stated there was a problem at 24% I then tried to get into Windows after shutting down and OS never booted up again. Does this mean I lost all my documents and programs? Can I call the company that sold my laptop to and get a bootable CD? Thank you.