Go to Settings > Cookies and site permissions > Notifications . Remove any sites listed under the "Allow" section.
Open McAfee → go to (gear icon) → General Settings → Alerts and Notifications . Turn off: windows 11 mcafee popups
If you see McAfee popups but cannot find the app in your installed programs list, you may be the victim of a "scareware" ad on a website. Go to Settings > Cookies and site permissions
If the alerts appear inside Chrome, Edge, or Firefox—often claiming your "subscription has expired" or "viruses found"—they are usually "scareware" caused by websites you've visited rather than an actual infection on your computer. 2. How to Stop Legitimate McAfee Notifications windows 11 mcafee popups