Cant update unknown error

Hi  a couple of weeks ago I updated my windows 10 and my computer went nuts had to take to a tech as I am completely computer illiterate. The guy had to strip my computer and reinstall everything, on top of that we change our provider and have a new email I have inform AVG of that , everything was going good until I noticed the updates are not happening I have noted your response to that on this forum and have followed the advise  several times on the server.msc still not happening. Do I have to remove and re install AVG ?
I am a bit frightened to do  that will it be safe, I also down loaded from AVG my  software and there is no license the email that I was sent before to download is the old email we have Ultimate on two computers and my husbands is also not updating also showing unknown error?- can anyone help me - Sue

Stephen,

We will help you to update your AVG Ultimate and check the possibilities to update your account into new email address. We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve the issue.

Stephen,

We will help you to update your AVG Ultimate and check the possibilities to update your account into new email address. We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve the issue.