Browser Blocked

Hello Rick, 
Thank you for reaching AVG Support Community.
We're sorry to know that you're facing this trouble.
We will certainly look into it and help you.
For better clarity, please share the screenshot of the concerned AVG message which you get while accessing Ms Office 365 on your computer.
If needed, please find a quick guide on how to take a screenshot here.
May I know how do you confirm that AVG causing this issue?
Are you getting any error messages relating to AVG Secure Browser?
Also, please mention the name of the AVG programs installed on your computer.
Thank you for your understanding.

Cannot get into MS Office 365, receive message on multiple browsers stating "your browser is a bit unusual". Any fix for this problem? Running Windows 10.

Thank you for the quick reply. It doesn't state that AVG is the issue, just never had this issue since adding AVG Ultimate. Below is the message I'm receiving. I tried Google, IE, and Edge, all provide the same message.I tried disabling "protect browsers" on Anti-Track to see if that would help, it didn't, same with the firewall.

User-added image

Hello Rick, 
Thank you for reaching AVG Support Community.
We're sorry to know that you're facing this trouble.
We will certainly look into it and help you.
For better clarity, please share the screenshot of the concerned AVG message which you get while accessing Ms Office 365 on your computer.
If needed, please find a quick guide on how to take a screenshot here.
May I know how do you confirm that AVG causing this issue?
Are you getting any error messages relating to AVG Secure Browser?
Also, please mention the name of the AVG programs installed on your computer.
Thank you for your understanding.