I have a 2011 macbook pro with Mavericks installed. I was working on a document when my mac shut down randomly. I turned back on, to find that it won't boot. I went in recovery mode>disk utility>verify disk. There was an error, so I repaired my hard drive. But I got the message that my disk is corrupt and that I should back up all files. Unfortunately, I don't have a time machine disk to automatically back up to. I'd really like to fix my hard drive (startup drive), but also not lose my files on it! I do not know how though, since I can't boot up, I can't back up. How can I do this???