Restart of computer and AVG

Hello Bengt,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you please confirm if you get it while using AVG application or randomly?
We will certainly help you out.
Thank you and keep us updated.

Sometimes I am asked to restart the computer to get updates from AVG. How can I be sure this is really from AVG, and not frrom any trolls?

Hello Bengt,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Could you please confirm if you get it while using AVG application or randomly?
We will certainly help you out.
Thank you and keep us updated.