I hope this does not seem like a silly question.(2 actually) What I want to know is:- Can I clone my C drive unto my External USB Drive (this is cased). then if my C Drive HDD fails or whatever,can I remove the external drive with the cloned image, instal it as my master drive into the tower and then be up and running? If this can be done and I clone my C drive is it then left as it was? in other words does the cloning just copy and not move the contents of my C Drive. Thanks.