I have a Dell Diminsions 2400 Pentium 4 2.40 GHZ 256 MB Ram Free Space 23.2 37.2 GB Run Windows XP .Version 2002 Irun McAfee on start up and set to run twice a week automatically . I also run RegCure once a week. Two weeks ago I was showing at least 150 empty registry keys. This week it shows only 40 or less . What is happening to my empty registry keys . Also tonight the PC says I have no Virtual Memory !!!!!!!!!!!!!! What is going on?? I did download FarmVille from Facebook . Has that ruined my PC ?? Thanks Carolyn