I second Manoj's advice. After the EOL date, your product no longer receives updates or upgrades, and DAT updates will eventually cease. McAfee recommends you upgrade your operating system.
You may refer the official document in the link below:
https://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS1020 12&pf=1&_afrLoop=4027633354522074#!%40%40%3F_afrLoop%3D4027633354522074%26articl eId%3DTS102012%26centerWidth%3D100%2525%26leftWidth%3D0%2525%26pf%3D1%26rightWid th%3D0%2525%26s