diff --git a/windows/security/threat-protection/windows-firewall/images/Eventaudit5157.PNG b/windows/security/threat-protection/windows-firewall/images/event-audit-5157.png similarity index 100% rename from windows/security/threat-protection/windows-firewall/images/Eventaudit5157.PNG rename to windows/security/threat-protection/windows-firewall/images/event-audit-5157.png diff --git a/windows/security/threat-protection/windows-firewall/images/Eventpro5157.PNG b/windows/security/threat-protection/windows-firewall/images/event-properties-5157.png similarity index 100% rename from windows/security/threat-protection/windows-firewall/images/Eventpro5157.PNG rename to windows/security/threat-protection/windows-firewall/images/event-properties-5157.png diff --git a/windows/security/threat-protection/windows-firewall/images/firewallrules.PNG b/windows/security/threat-protection/windows-firewall/images/firewallrule.png similarity index 100% rename from windows/security/threat-protection/windows-firewall/images/firewallrules.PNG rename to windows/security/threat-protection/windows-firewall/images/firewallrule.png diff --git a/windows/security/threat-protection/windows-firewall/images/QuarantineDefaultblock filter.PNG b/windows/security/threat-protection/windows-firewall/images/quarantine-default-block-filter.png similarity index 100% rename from windows/security/threat-protection/windows-firewall/images/QuarantineDefaultblock filter.PNG rename to windows/security/threat-protection/windows-firewall/images/quarantine-default-block-filter.png diff --git a/windows/security/threat-protection/windows-firewall/images/QueryUserDefaultblockfilters.PNG b/windows/security/threat-protection/windows-firewall/images/query-user-default-block-filters.png similarity index 100% rename from windows/security/threat-protection/windows-firewall/images/QueryUserDefaultblockfilters.PNG rename to windows/security/threat-protection/windows-firewall/images/query-user-default-block-filters.png