How can I re-start my harddrive installation; i.e. completely 'wash' (to use an old DOS term) my main drive. I am running XP and have tried to restart using my original installation disk, but it won't boot from this disk. There are programs I want to remove, like Norton PC checkup, which have .dll extensions, that will not delete despite using Calypso (which works similarly to X-tree Gold, but doesn't seem as powerful). I've changed the attributes, but still cant completely remove Norton, so Ive decided to start my installation from scratch, but it's not as easy as the old DOS/Win3 days...