Would you like to learn how to use a group policy to prevent changes to the Proxy settings? In this tutorial, we will show you how to create a group policy to disable changes to the Proxy configuration on all computers in the domain.

• Windows 2012 R2
• Windows 2016
• Windows 2019
• Windows 10
• Windows 7

Hardware List:

The following section presents the list of equipment used to create this tutorial.

Every piece of hardware listed above can be found at Amazon website.

Tutorial GPO - Prevent changes to the Proxy settings

On the domain controller, open the group policy management tool.

Windows 2012 - Group Policy Management

Create a new group policy.

Windows 2012 - Group Policy Objects

Enter a name for the new group policy.

Windows - Add GPO

In our example, the new GPO was named: MY-GPO.

On the Group Policy Management screen, expand the folder named Group Policy Objects.

Right-click your new Group Policy Object and select the Edit option.

Windows - Edit GPO

On the group policy editor screen, expand the Computer configuration folder and locate the following item.

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Access the Internet explorer configuration folder.

GPO - Prevent Proxy changes

Access and enable the option named Prevent changing proxy settings.

GPO - Disable proxy configuration

To save the group policy configuration, you need to close the Group Policy editor.

Congratulations! You have finished the GPO creation.

Tutorial - Applying the GPO to prevent Proxy change

On the Group policy management screen, you need to right-click the Organizational Unit desired and select the option to link an existent GPO.

Windows-2012-Applocker application

In our example, we are going to link the group policy named MY-GPO to the root of the domain.

GPO- tutorial linking

After applying the GPO you need to wait for 10 or 20 minutes.

During this time the GPO will be replicated to other domain controllers.

To test the configuration, open the Internet Explorer Proxy configuration.

Here is the Proxy configuration screen, before our configuration.

GPO - Prevent proxy configuration

Here is the Proxy configuration screen, after our configuration.

Disable proxy configuration GPO

In our example, the Proxy configuration options were disabled using a GPO.