Social engineering would not be a possible vulnerability or exploit that may lead to an attacker bypassing the firewall.
A strong firewall policy
Social engineering would not be a possible vulnerability or exploit that may lead to an attacker bypassing the firewall.
Cache poisoning, authorization errors, serialization/aliasing errors, boundary checking errors, domain errors, and weak or incorrect design errors can all lead to attackers being able to bypass firewalls. Firewalls that are out of date or misconfigured tend to be much easier to bypass.
A vulnerability is an identified weakness in something. You haven't specified the possible answers, so I can't say which one is not a vulnerability.
It is possible that when Windows Firewall won't turn off, there is a problem with the Firewall itself. There is also a possibility that the program is waiting for authentication. Try signing in as an administrator, then turn the Firewall off.
OPSEC program manager,Supervisor, Commander/director
OPSEC program manager,Supervisor, Commander/director
OPSEC program manager,Supervisor, Commander/director
Unit OPSEC program manager, supervisor and Commander/Director
Unit OPSEC program manager, Supervisor, Commander/Director
Unit OPSEC program manager, supervisor and Commander/Director
Unit OPSEC program manager, supervisor and Commander/Director