Maybe this is your answer:
https://www.2-spyware.com/remove-you...s-expired.html
Your McAfee Subscription Has Expired is a scam message which is typically initiated by adware. The fake error announces that the McAfee antivirus' license has expired and needs to be renewed in order to protect your machine. To do that, you are prompted to click “Renew now.” Nevertheless, it is only a dubious way to trick you into paying for bogus software or entering personal details that can be used for illegal activities. The false alert might pop up in Google Chrome, Mozilla Firefox, or any other browser, but you should never proceed as it is just a scam and should be ignored.