Prompts from McAfee SecurityCenter requesting that you verify your subscription can have many causes, including issues with your Internet connection or computer settings. , please follow the steps below in order.
1.Check whether the system date & time are set right as per your time zone.
2. Check and delete if you have any other security software in control panel & C:/program files & common files .
3. Click on this link http://us.mcafee.com/apps/agent/tools/ts/ts_getemail_new.asp and check whether the website provides a list of the McAfee products installed on your computer and the account (email address) that used when installing these products are the same.