If the pop-ups appear inside a McAfee window or notify you about subscription renewals and "PC performance" issues, you need to adjust the settings inside the McAfee console.
Go to > Cookies and site permissions > Notifications . Check the Allow list and remove any suspicious sites. Toggle off Ask before sending to prevent future requests. Method 3: Remove WebAdvisor and Extensions how to stop mcafee pop-ups windows 11
If the pop-ups appear in the bottom-right corner of your screen, they are likely "Windows Notifications" rather than pop-ups from the software itself. If the pop-ups appear inside a McAfee window