Bitdefender does not disable Win8.1 firewall.
I had to turn it off manually.
Now in Windows Services Windows Firewall is set as follows:
Status Started and Startup Type Automatic.
Is set up correctly?
Another question is
Why in Control Panel > Windows Firewall, not notify that the firewall settings are managed by Bitdefender IS?
And how can I be sure that the BDIS Firewall is working?
Thanks in advance!