If it works, use it. Far too many times, no one has a valid backup. Because I do not have access to my main system at this time, and my previous laptop was melted (please, don't ask), I am in the process of swapping out hard drives from a slow 5400RPM conventional to SSD. The first process in doing this is, of course, backup, backup, backup. Ultimately, this has become a huge industry, because time and again, people lose their data. Big money is spent on backup and recovery when going to a professional shop. One way to avoid this is to simply acquire a high capacity drive for off-site storage, that can be connected via USB (preferably USB3 or eSATA), and do offline bare metal backups. These tend to be more precise and have less of a...