I followed other advices mentioned in related Avira discusstion threads.However, I did not reach a result and did not get any feedback in the last 21 hours.
Even worse is to see how Avira handles this problem experienced by many users.
No general statement, no concrete feedback on a website that there is a problem and thus a company selling safety taking for granted that it's community is not able to get automatic updates.
I lost track of how many times I reinstalled and repaired Avira Antivirus Pro, only for the issue to come back again.
So, the permanent workaround is to reduce security by disabling Avira process protection?
Here is what error dialog says Driver installation failed Severity: Error Error code: 0x C0070643 Error message: General internal error.