I'd second that good advice for the paranoid and those who are sick of virus and internet problems. More and more people are getting a cheap Mac mini or second hand OSX computer for all their downloading, internet and email needs. You can then check everything for virus. before moving the files to the PC. They network with Windows computers so just plug it into the router and turn on Windows sharing. This gives you a "relatively" safe internet experience. I've been saved from 18 discovered email infections alone. Not having to reinstall my software and Runtimes or tearing my hair out has paid for it.