Threat Secured Box Popping Up

Good Evening!  This evening I began getting a Threat Secured box that continually pops up.  I am using a Windows 10 computer with AVG Free installed on it.  The box mentions 9.tlu.dl.delivery.mp.microsoft.com as the culprit.  I have a screenshot of the entire box but do not see a way to attach it to this post.  Please advise. 
Many thanks!

Hello Daniel,

We'll help you with this.
We've sent you an email requesting a threat popup screenshot to investigate further.
Please do check and revert back to us.

Hello Gabriel, 

We will help you to resolve it. Could you please share the screenshot of threat detection page in separate own post? So, we will check our record and help you further. 

Keep us updated. Thank you.

Can I have one of those emails too. I have the exact same issue, and would like to be able to sort it asap. Thanks

Hello Daniel,

We'll help you with this.
We've sent you an email requesting a threat popup screenshot to investigate further.
Please do check and revert back to us.