Introduction Norton Antivirus helps users protect their computers and other compatible devices against online threats, including malware, viruses, and suspicious activities. To access the features included with a Norton subscription, users may need to install the appropriate software and activate it using valid subscription credentials or a product key. Understanding how a Norton antivirus activation key works can make software setup easier and help you avoid common installation and activation errors. Whether you have purchased a new subscription, are reinstalling Norton on your computer, or need to renew an existing plan, following the correct procedure is important. In this guide from Secure Soft Licenses , we explain how to complete Norton setup with product key, where to enter your Norton antivirus product key, how installation works, and what to check if activation or renewal does not proceed as expected. 1. What Is a Norton Antivirus Product Key? A Norton antivirus product key ...