David, my OS is windows xp, sp3. There is an icon in the system tray, and I finally clicked that I will monitor the anti virus myself, so WSC closed. But the thing I have noticed, is that it keeps saying that avast is disabled on the readout for Avast. I was using AVG, but uninsulated it by Add/Remove Programs. Let me ask one more question. IF I was to download Avast again, would I have to ask for another Registration key, or could I use the one sent me for the last Avast?