If not you should so you do not have to use your W7 install Disc. I also use Macrium Reflect (They have a Free version) that is truly outstanding for backups I use it also but on a weekly basis to a completely different Internal HD as I have 4 internal drives. The paid version of Macrium Reflect will let you do incremental back-ups. The W7 and Macrium Reflect are as good as Acronis. The Only difference between Acronis and Macrium is Acronis has a Cloning function