Popup loops are still a big flaw with Edge because malware spreaders and advertisers are still able to manipulate the system so that users cannot get out of the popup loop. The only way to stop the trouble is to close your Edge browser using your app manger via CTRL+ALT+DELETE. Stop Edge from working, and clear its history via your computer control panel, with a third party app such as CCLeaner, or manually. This will stop the problem recurring when your Edge web browser tries to reopen your old web pages when you restart Edge.