After automatic upgrade to 8.1,not all working

Rosemary, Please refrain from carrying out multiple postings on the same subject! You won't obtain an answer to your query any faster! Other posting (https://support.avg.com/answers?id=906b0000000D2WtAAK).
AVG Guru

PC was automatically upgraded to 8.1,now some of the antivirus systems are not working

Rosemary, Please refrain from carrying out multiple postings on the same subject! You won't obtain an answer to your query any faster! Other posting (https://support.avg.com/answers?id=906b0000000D2WtAAK).
AVG Guru