My neighbor had these exact same problems. Forget system restore, forget SAD. We tried everything we could think of. I even followed the directions online as far as manually remving AV2009. We ended up wiping the computer out. With Dell its called F11 it. It basically is the function on your computer that wipes all files that werent there when the unit was shipped. It takes it right back to the same ocndition it was in when you got it. Who knows, it might even fix your keyboard problem too. The way you do this, is when you start the puter, as soon as you see things come up, like the Dell splash page. or the POST check, press and hold F11. It SHOULD go into the menu you need