How to get rid of McAffe Ads

young annoyed female freelancer using laptop at home

HELP!!!!!!!!!!!!!!!!!!! I have been invaded by McAfee antivirus advertising and I can't find  a way to permanently block or elimiate them. I personally do not like McAfee and or their pricing. I already have an antivirus program I like and use frequently. How in the heck do I end McAfee so I don't have to deal with it again?