I have an older Lenovo desktop PC with wondows vista on it. I recieved it from a friend a while back but it's so polluted with unwanted stuff on it I just want to restore it to its factory settings. My problem? I DON'T HAVE A RECOVERY CD or even the windows vista disk... I have nothing! Can I still restore it? I've looked at many other forums but the only advice I can get is for dell computers and what not... PLEASE HELP! S.O.S