Hey Starwarsman,
I downloaded Avast and let it do the boot scan. It found a few viruses, something like active X image or something.
When my laptop started back up (Im still getting the "Windows Explorer has stopped working" messages, Ive posted stuff about it in this part of the forum and the operating system part of the forum, which I thought was due to the virus), I clicked onto Internet Browser and useually I get a message saying I have the irus, and my homepage is some sort of antivirus crap even though I tried making Google my home page. This time, Google came straight up and so far ive had no pop-ups about anti-viruses or about any viruses on my laptop.
They only thing that is now happening is the Little box thing that comes from the bottem right hand side of my screen (where the volume, time and other little icons are) telling me of a virus called Renos
Thanks for your help Starwarsman, and thanks to everyone else that helped.
Now I'll try and get rid of Renos and then ive got a trip to PC World.