Can't uninstall AVG 9 free version ...anyone help?

Go to the Control Panel, then to Programs and Features where are installed programs are listed. You should find it there. Sometimes it’s under the manufacturer’s name rather than it’s popular name. Also, check in the Program Files under AVG and see if there is a file that says "uninstall". If there is, use it. If not, try uninstalling every sub-folder in the AVG file until there is nothing left.