This is because programming etiquette (or lack of) is nowadays dictated by some pratt in Marketing who doesn't know a mnemonic if it hit him in the face.
There's not even a reference to this in the registry or I'd have had it sorted by now.
Agreed though I feel from what the support staff say that it was more of a bug than a deliberate add in. Yes I tried to find a way to stop it but it was persistent. No matter 16.0.R6 fixed it update out in a week or so and available now for reinstalls.
OK, if anybody else is complaining about this issue, simply uninstall and reinstall McAfee from my Account, this will solve the issue, it is not currently available as an update to existing downloads but is to reinstalliations.
Signing off now lol
I know. Why the delay for updating is annoying but I feel they want Xmas over as staff levels low. Should happen or at least start rolling out early this month.