It's true, just by viewing a web page you can get viruses, spyware, adware, etc. If you need to get your PC clean, these ones should do the trick: (I did not provide links, due to security issues, just search them on Google) AVG Free Anti-Virus AdAware Personal Spybot Search and Destroy Windows Defender (previously known as Microsoft Anti-Spyware) All the above ones are safe and trusted, and completely free (although some have better versions if you'd like to buy the premium). One last thing, always browse with the Mcafee SiteAdvisor. They have add-ons for Firefox (and IE, if you use that), and you should never search/browse without it, in my opinion. It adds a tiny box in the bottom right corner of your browser, and it will update it's color (green=ok, yellow=minor issues, red=bad) to match the web page you're viewing. Click on the box to see all of the e-mails you get from that site, info on the downloads and pop-ups there, and much more. It's very handy. Stay safe!