On Yahoo Answers, plenty look for free anti-virus software every single day. I have tried to help on computer problems for about 6 months now. You can search for question with Free Virus and see 1000s of questions on it. These two seem to be fairly popular among the geeks. _http://free.avg.com/_ (http://free.avg.com/) _http://www.malwarebytes.org/_ (http://www.malwarebytes.org/) Next is not anti-virus. Another free one is CCleaner. _http://www.ccleaner.com/_ (http://www.ccleaner.com/) CCleaner has a registry feature. One problem I had with it was disabling my Java so I had to reinstall. The registry cleaner still whines about Java but I ignore it. I spent $40 at McAfee for a 3 license deal. Michael Andrews, ASC Minesota