If you like to uninstall Avira Free Android Security, but you get the message “Uninstall not successful”, you may have enabled the administration mode.

To disable the mode, please proceed as follows:

1. Start the Avira Free Android Security App
2. Go to Settings → Wipe Settings
   
   
    
3. Disable device administration
   
   
    
4. Try again to uninstall the application from your device