I want to thank you very much for this advice, Fireox. I noticed that my old laptop had the same trouble as the OP (I have XP Pro SP3 also), where the real time protection for Filesystem Protection & Website Blocking was off and wasn't being enabled when I tried to start it. I didn't do what the OP done, though, as in uninstall and reinstall, and I suppose I took a chance (and a guess based on reading this thread) on it being the Terminal Service being disabled on my machine also. So, I followed your advice on entering that line and restarting my laptop. When Windows eventually loaded up, I noticed that my Malwarebytes automatically started the Filesystem Protection & Website Blocking when it loaded up and I am back up and running with full protection now. Big thumbs up to you, Firefox