The McAfee Internet Security Suite and antivirus software are the tools that McAfee develops to help secure home, business, or school systems. For the whole McAfee items brought in online or from the retail store, you will need an identification key. Make sure you have properly registered the purchased McAfee software with the company so that you can quickly get notified of the latest updates. If you want to download, install and Activate McAfee setup with the product key, go to mcafee.com/activate.