Have you noticed your computer running slower than ever lately? The reason for that may have to do with online advertisers adding SpyWare or AdWare to your computer without your knowledge. "Spyware" is a common term for files that are installed on your system without your knowledge that allow companies to monitor your Internet activity. "AdWare" is software that will show you popup ads over and over. What they don't tell you, however, is how these files can be extremely dangerous to your PC and could cause major problems with your PC. If you want to know how many spyware infections your PC has for free of charge, click banner below.