Hi Dusty, thanks for the reply. The letter I typed in was actually the letter of my cd/dvd drive where the disc was, in this case g: Sorry for the confusion.
I maybe should say that I have run Spybot S&D, Trend micro housecall, super antispyware, spywareblaster, avg anti spyware, avg av, windows defender and ccleaner. All that was found were a few tracking/profiling cookies. I have also run chkdsk on my C: drive which was ok, if that is any help. In between my first post and this one I tried the fix again but I still got the same result. In the meantime I am booting my pc from the xp disc every time.
Thanks again for the help.