Hello, guys. I would like to know how to use free antivirus and antispyware tools to clean computers up from infections by myself rather than paying money to the tech support guys. I think that it would be a good skill to have knowing how to fix computers even if it means just using freely available software. Having this skill would encourage my inner geek and give me the ability to help friends to troubleshoot their computers. Are there any free comprehensive guides to learn this skill?