[slick]

You could try a system restore to its earliest point or if you want to redo the lot then you'll need a win xp cd.
b4 installing that I'd advise you to download and save onto cd or flashpen the drivers for the laptop otherwise you may struggle to get onto the net afterwards.

what exactly is up with the laptop? if its running slow could be a host of things, first remove any software you do not use then try running that superantispyware thats in another thread in this forum, that solved a lot of problems for me.