answer:Go to your Control Panel and select Automatic Updates. This will present a dialog box that allows you to set IF updates are downloaded and HOW TO HANDLE them once they are. (The recommended option is “Automatic”, but you can set the machine to Download but not Install, Notify, but don’t download or install, or Turn off Automatic Updates altogether.) Why you’re receiving notifications about XP when you have Vista installed, I can’t imagine. Is it possible that the machine is set in some kind of dual boot mode?