On windows 10 upgraded computer I downloaded Norton Security from Comcast website and when I installed it and did live update I now have version 22.5.2.15. It seems that when I turn the computer off for the night and turn it back on Norton is not in the system tray. When I try to repair it says this version is not compatible with Windows 10. I can uninstall and reinstall and all is fine but I hope this is not a problem. I read in another post about activation of Norton. If I am a comcast user do I still need to activate since there is no cd key with Comcast?