I am currently running an antivirus ---- McAfee do I need to add or download anything else to keep my computer safe form viruses. I heard there are some things in your web page you can load to keep your Microsoft programs without any viruses. What are they if there are any and how do I know if I have them or if I need to install them or how do I even get them if they are not installed? Oh, I am currently using Windows XP. Thanks for the help before hand.