Hello Is it so,
Sounds like you are referring the coverage up to 5 computers.
To deactivate one of the subscriptions, you should be able to uncheck This PC is protected with 5-user Cox Security Suite Plus via Cox.
To access additional support:
Go to https://community.mcafee.com
Or call McAfee at 888-556-0959.
For more information about our McAfee Security Suite:
http://ww2.cox.com/residential/support/internet/article.cox?articleId=0b7d0470-6409-11df-ccef-000000000000
