You need to enter an e-mail address to register with your McAfee account if you are making a new one. In case you already have a registered account with McAfee you simply have to type in the e-mail address associated with your existing account. To complete the activation process, click on the Next button which will redirect you to a new page prompting you to initiate the download process for the McAfee Anti-virus application. From there just follow further prompts or instructions.
Mcafee.com/activate
