Does anybody know how I can completely restart my computer, as if it were new? It is completely failing on me at the moment and I have tried everything I can think of to resolve the matter (complete virus scan, defragmentation etc), however, I now think that the best thing I can do is to start from 'factory settings' in order to resolve my problems. Any advice would be great.
Are you using XP? Are you able to get it to the point where you could restore your computer to a previous date? Failing all that it sounds as if you'd be better off reformating your hard drive and reinstalling the OS.
Thanks everyone for your help, turns out the anti-virus program I have isn't as good as I thought, I downloaded another one and it seems to have solvedever problem I had with my computer. I will of course be phoning the company who I purchased my original anti-virus off to tell them how naff it is.