Kathryn,
We are here to help. Please uninstall AVG Free Antivirus completely by following the steps mentioned here . After that, please reinstall AVG Free Antivirus as per the steps mentioned in this article .
Somehow I have two AVG Free accounts installed on my pc. I've tried uninstalling one of the a/cs but I still have a circled red x stating that my computer is unprotected. Can anyone help please?