Ok not the obvious question, but i was wondering if someone could tell me how to completely format a machine so that i can sell it. I am conscious of the files left behind when i do the factory reset and need something "fuller" as maybe an interim step. It's a Dell desktop so i will be using the hidden partition to load Windows back on after the work.
I have tried Darik's Boot and Nuke but it takes far too long. Anyone any alternatives?