McAfee antivirus is the American global computer security company that has been offering advanced security measure to users across the globe. Providing various features for detecting and removing viruses and malware, eliminating the risk of online threats by blocking malicious websites and securing your device from cyber crimes.
Click the Start button and search for McAfee and then launch McAfee on your device
From the menu available, check for your subscription detail and of the validity is going to expire or has expired then continue to follow next step
Click McAfee activate button
When directed to the next page, enter your McAfee license key code if asked and then submit, for other details you can visit McAfee.com/Activate.