For Mcafee activate and Installation
Enter your 25 digit McAfee activation key. (Look for it on the card you purchased)
Choose "My Account" and type your email address and password to log in. If you have not yet, create a new account and log in. Select the McAfee product on your list of authorized purchased to download to your computer. Run the McAfee installation program after completing download. And, Scan your computer. After scanning, your computer is secure.