He wasn't allowed to use a computer that had 'encryption,
Want to log in to your baking site with ssl. Sorry kid.
Try MS SteadyState
and better yet: in addition to just using SteadyState on the whole disk, make regedits to keep 'Documents and Settings' on a separate partition where SteaedyState is off so the users can actually save something to their hard drive that won't be lost on a reboot, which IMHO is much more useful.