I have got rid of all unneccessary programs, cleared my desktop. It it is a virus, I cannot even install an antivirus program. I did, when I still had more memory, but that made the problem worse. When I uninstalled my anti-virus software, the memory still stayed low, when it should have been higher, back to where it was before the anti virus software was installed.
PS: No, I do not want to spend any money on memory upgrades etc as my laptop was fine without it until this problem started. How can I free up memory on my C drive?
I have Windows XP on a Toshiba Satellite (not sure how old as I bought it used) and use C cleaner regularly as well as PC Dpc Pro V5.