as Norton 360 is a subscitpiton based product, you can always install the latest versions. Here are the steps: 1. If you use the feature, please backup your Identity Safe data (Settings -> Identity Protection -> Backup) 2. Download latest Norton 360 installer: - www.norton.com/n360s_5 Standard with 2GB Online Storage - www.norton.com/n360p_5 Premier with 25GB Online Storage - www.norton.com/n360sne_5 Standard Netbook Edition with 2GB Online Storage - www.norton.com/n360pne_5 Premier Netbook Edition with 25GB Online Storage - for other languages than English please go to the Norton Update Center: www.norton.com/nuc 3. Download Norton Removal Tool: www.norton.com/nrt 4. Disconnect from internet 5. Remove the old Norton 360 version from Start Menu or from Control Panel -> Add or Remove programs 6. Reboot 7. Run the Norton Removal Tool, reboot (repeat it 2-3 times) 8. Install Norton 360 version 5 with the downloaded installer 9. Reconnect to the internet 10. Activate Norton 360 version 5 with the same key you have for the older version 11. Run Live Update until you get no new updates 12. Restore your Identity Safe data (Settings ->Identity Protection -> Restore)
You can check how the Norton Removal Tool works in this video.