I want to back up my entire hard drive file for file, so that in the event of a crash, I can simply restore everything to a new hard drive. In playing with the free version, it asks me to select certain files. What am I missing? How do I back up everything without selecting the files? I don't want to miss anything. Is it possible to back up everything, so that in the event of a crash, I can just restore every file with it's current structure from an external hard drive?