How to Fix AVG License Error? AVG License error comes when there is issue with license key while activating the antivirus on your computer. AVG support phone number. This issue also comes when AVG configurations get corrupted or not acceptable by AVG and showing invalid. AVG support number. And when there is license error for AVG, your computer is not protected and vulnerable to cyber threats. AVG helpline phone number. To fix the Avg License Error you can follow the few useful steps given below or call at AVG support phone number for online assistance by experts and solve the product key license related issues. Steps to Fix AVG License Error: Open avg.com/lost website on your system. Now enter in your official email address that you previously used while purchasing the AVG. Now, do the verification process by typing the verification code in the given box. Then, give a click on “Continue” button. Soon, you will receive an email with a list ...