I use Nero Back-it-up ( part of Nero Essentials ) which allows you to completely backup your entire main hard drive( not OS of course), desktop,other drives, but also all your programs . You need to keep Nero on your pc as if you need to get the data back, it is required. I recently had catastrophic crash of my notebook, and had new OS and wiped main hard drive.Now use my existing external drive to have full pc back-up ( 60 gb ) and the new Toshiba for everyday use, so I am doubly covered. In any event the Tosh' has more than enough capacity to select as the backup destination. ps Tosh' amazing value and so quiet, and I like the bright blue light, as it prompts me to turn it off !