McAfee activation basically depends on a product key that helps to verify the user's subscription. The product key will be present inside the package in the case of McAfee's retail version. Otherwise, it will be accessible on the registered email address. Look for the activation key accordingly and use it to avail premium services easily. Follow the given points and get access to McAfee antivirus:

Open the web-link: mcafee.com/activate on your system.
Select the Language and Country.
Tap on the Sign-in option and enter your registered email address along with the password.
Press on Activate McAfee and insert a 25 digit product key into the required field.
Tap on Submit and proceed to the next steps.
After a few seconds, McAfee will be activated on your system.

For more info visit my sites- mcafee.com/activate

office.com/setup