Problem AVG Internet Security update

When I attempt to update to the newest version the following error message appears

Last encountered error: unkown error

Tracy, In future please refrain from carrying out multiple postings on basically the same subject! You won't obtain an answer to your query any faster!. Also please try to keep the whole conversation in one question/thread to speed up any resolution. Please see your other posting (https://support.avg.com/answers?id=9060N000000Tp4zQAC).
AVG Guru