windows-itpro-docs/windows/security/operating-system-security/network-security/windows-firewall/create-an-outbound-program-or-service-rule.md

title, description, ms.topic, ms.date

title	description	ms.topic	ms.date
Create an Outbound Program or Service Rule	Use the Windows Defender Firewall with Advanced Security node in the Group Policy Management console to create firewall rules.	conceptual	11/13/2023

Create an Outbound Program or Service Rule

By default, Windows Defender Firewall allows all outbound network traffic unless it matches a rule that prohibits the traffic. To block outbound network traffic for a specified program or service, use the Windows Defender Firewall with Advanced Security node in the Group Policy Management console to create firewall rules. This type of rule prevents the program from sending any outbound network traffic on any port.

To create an outbound firewall rule for a program or service

1. Open the Group Policy Management Console to Windows Defender Firewall with Advanced Security.

2. In the navigation pane, select Outbound Rules

3. Select Action, and then select New rule

4. On the Rule Type page of the New Outbound Rule Wizard, select Custom, and then select Next

   Note

   Although you can create many rules by selecting Program or Port, those choices limit the number of pages presented by the wizard. If you select Custom, you see all of the pages, and have the most flexibility in creating your rules.

5. On the Program page, select This program path

6. Type the path to the program in the text box. Use environment variables as appropriate to ensure that programs installed in different locations on different computers work correctly

7. Do one of the following:

   • If the executable file contains a single program, select Next
   • If the executable file is a container for multiple services that must all be blocked from sending outbound network traffic, select Customize, select Apply to services only, select OK, and then select Next
   • If the executable file is a container for a single service or contains multiple services but the rule only applies to one of them, select Customize, select Apply to this service, and then select the service from the list. If the service does not appear in the list, then select Apply to service with this service short name, and type the short name for the service in the text box. Select OK, and then select Next

8. If you want the program to be allowed to send on some ports, but blocked from sending on others, then you can restrict the firewall rule to block only the specified ports or protocols. On the Protocols and Ports page, you can specify the port numbers or protocol numbers for the blocked traffic. If the program tries to send to or from a port number different from the one specified here, or by using a protocol number different from the one specified here, then the default outbound firewall behavior allows the traffic. For more information about the protocol and port options, see Create an Outbound Port Rule. When you have configured the protocol and port options, select Next

9. On the Scope page, you can specify that the rule applies only to network traffic to or from the IP addresses entered on this page. Configure as appropriate for your design, and then select Next

10. On the Action page, select Block the connection, and then select Next

11. On the Profile page, select the network location types to which this rule applies, and then select Next

12. On the Name page, type a name and description for your rule, and then select Finish