Hi Carolyn.
We're here to help. It seems previous version of AVG was not removed completely. Please follow the steps in this link to remove it manually.
I started having problems with AVG on my MacBook so I decided to try uninstalling and reinstalling the software. Unfortunately when I try installing the software, an error message comes up saying "AVG antivirus is already installed, please uninstall the previous version first". I have searched my whole computer and the previous version no longer exists. I'm not really worried that my computer has been unprotected now for months. Any advice?
Hi Carolyn.
We're here to help. It seems previous version of AVG was not removed completely. Please follow the steps in this link to remove it manually.