If you are crazy and want to get rid from avast! and stay with Norton, please, do a correct uninstall :cry:

  1. Desinstall your actual version of avast (Control Panel).
  2. Boot
  3. Use Avast Uninstall for complete desinstallation.
  4. Boot

Anyway, I think you will regret of this…
Definitevely, avast! is better than NAV :stuck_out_tongue: