Hmm, what about after market software? It's not that I am lazy, but I just don't have time to manually backup each individual system to a portable external. As far as partitioning goes, I don't like to backup to the primary drive. I have lost a HDD before, it sucks losing data and family pictures, etc. Currently, on my main PC, I back up and re-image twice a week to a dedicated HDD. Once a month I bring my external home from work and do a master back up and re-image, JIC the house burns down or some douche bag decides he wants to break in and steal all of my belongings.