Uninstall AVG Free Antivirus

I have an old MacBook Pro (2012) with the free AVG Antivirus installed. I would like to remove the AVG antivirus software and replace it with a subscription to Avast antivirus software.  I was unsuccessful in removing the AVG software myself, and even Apple support techs were unable to remove it too.  Help!!!

Hello Steve, 

We are sorry for the inconvenience caused. We will help you to remove AVG Anti-virus free from your Mac device. Please refer the below article to know how to remove AVG Anti-virus :

Uninstalling AVG AntiVirus (https://support.avg.com/SupportArticleView?urlname=Uninstall-AVG-Antivirus)

Please try the above steps and let us know if its help you. Thank you. 
Hello Steve, 

We are sorry for the inconvenience caused. We will help you to remove AVG Anti-virus free from your Mac device. Please refer the below article to know how to remove AVG Anti-virus :

Uninstalling AVG AntiVirus (https://support.avg.com/SupportArticleView?urlname=Uninstall-AVG-Antivirus)

Please try the above steps and let us know if its help you. Thank you.