I have no idea what components you have installed but if you have VirusScan and SiteAdvisor and perhaps also Anti-Spam, you are protected as far as the software can protect you. Nothing in this worlkd is guaranteed unfortunately especially if a person insists on downloading stuff from dangerous sources or clicking on unknown links and doesn't keep their operating system and associated software totally up to date. In other words act safely and keep your computer up to date, including any parts you may not use and you should be OK. That said, most people carry a few extra tools just in case. I've mentioned some in the last link in my signature below under 3rd Party Tools. There are also other tools from McAfee and other parties that are useful in certain situations.