Go to www.norton.com/setup and login to your norton account to enter Norton product key in the field. Once you locate and submit Norton product key, proceed to download the software. To install it, you just need to follow the on-screen prompts. Having active Norton software, you need to get a paid version of the software by creating your account on norton.com/nu16 page. This will give you real-time protection and entitle you to keep track of your ongoing offline activities.