[BUG?] Avast Firewall

Windows 8.1 Pro 64bit, random time the OS indicate the Avast Firewall is not turned on but it is running.

Anyone has this kind of bug? I notice this often because I have Windows Firewall turned off, and it will give warning whenever there are no firewall running.

Repair avast!:

  1. Control Panel → Add/Remove programs → avast!
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.