To stop the Windows PC or Mac, the Norton software needs to be downloaded in the system. Once you have downloaded the Norton antivirus on your device, then it starts removing the temporary and cache data to empty the storage in the computer. This antivirus deletes the hidden malware and viruses from the computer for increasing the speed. The Norton antivirus protects the system with advanced firewall service. You can download, install and activate Norton setup with product key at norton.com/setup.