This thing pops up and can be closed out, but it's an annoyance. I have run Safety Scanner, and Malwarebytes, and Windows Defender, and they find nothing. Help....
There is nothing to be found unless you call them. It's a common scam. Click the X to close the window. You should then see a box at the bottom, Do not allow this site to create new messages. Check it and then close that window and finally the popup.