Installing AVG Free

Peter, Please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. See posting (https://support.avg.com/answers?id=906b0000000bsBbAAI).
AVG Guru

I keep getting error message 0xC0070643 which prevents me completing installation. Has  anybody got any ideas please?  This is a brand new computer and has only MacAfee pre-installed.  I can't find a way to "switch off MacAfee, in case that is the problem.

Peter, Please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. See posting (https://support.avg.com/answers?id=906b0000000bsBbAAI).
AVG Guru