Can't get rid of Mcafee scam

"McAfee" is not installed on that Mac. Do not download or install anything to remove it. There is nothing to remove.

Those are Safari Notifications. Stop them by following these instructions.

• Go to Safari's Settings... menu > Websites > Notifications, and remove everything there.

For reference: Change Websites settings in Safari on Mac - Apple Support

Do not permit websites to send you Notifications unless you are 100% certain that you want that kind of harassment. Refer to Customize website notifications in Safari on Mac - Apple Support.

See these related Discussions:

How to stop McAfee pops up? - Apple Community

How do I stop mcAfee fake renewal notification from popping up? - Apple Community

Update macOS. To learn how to do that please read Update macOS on Mac - Apple Support.

roger@east sussex wrote:

how to get rid of mcafee scam banners?

Stop unwanted Notifications - Apple Community

Use app AppCleaner to remove it or go to the McAfee site and look for instructions on how to completely remove it.

how do I, get rid of mcafee scam banners that have started to pop up?