How to close a pop-up window if Microsoft Edge isn't responding
Content provided by Microsoft
Unwanted pop-up windows can sometimes be tricky to close and may even cause your browser to stop responding. If you have a persistent pop-up window giving you problems, here's how to use Task Manager to close it:
Right-click Start , and select Task Manager.
Select Microsoft Edge, and then End task.
Check to make sure the browser closed, and then close Task Manager.
After your browser closes, reopen it as you normally would.