Symantec Norton Antivirus for Windows-8 1-Year. Safely surf, shop, and bank online. Symantec Norton AntiVirus provides advanced antivirus protection that stops both today's and tomorrow's online threats. It helps protect your entire computer by stopping viruses, spyware, and other security risks. Norton AntiVirus works in the background, so you can surf the Internet, play games, and download software or music without disruption. It also blocks infected and dangerous downloads, preventing you from receiving viruses, or spreading them to others. In addition, Norton AntiVirus checks for updates continuously and automatically to keep you one step ahead of new threats and those not yet invented.