Annoying antivirus popup

Hello Alan,

We will help you with necessary information.

Can you share us the screenshot of the popup?

Hello Alan,

Thank you for the screenshot.

Is this pop-up occurs randomly or when you visit particular website? If this pop-up appears during browsing, please try it in alternate browsers and let me the status here.

We are here to help you anytime.

For the last couple days my AVG software has been popping up a window that claims:

======================================

Threat Secured
We've safely aborted connection on fixdoctorsfirst.net because it was
infected with URL:Mal
More threats may be lurking!
SCAN MY PC
==============================================
I then allow AVG to scan my computer with no findings of a problem and therefore no resolution. Usually the same window will popup.

I have updated the AVG software every day, but the Window still pops up claiming a problem.

What must I do to resolve this problem?

User-added image

Okay, Alan.
If you need any assistance, you can reach Avast support here: https://support.avast.com/

Pop-up occurs very randomly and even with browser closed.

Happily - Problem solved:

Uninstalled AVG

Installed Avast

Goodbye