Would you like to learn how to use a group policy to block users from accessing these websites with certificate errors? In this tutorial, we will show you how to deny access to websites with certificate errors.

• Windows 2012 R2
• Windows 2016
• Windows 2019
• Windows 2022
• Windows 10
• Windows 11

Equipment list

Here you can find the list of equipment used to create this tutorial.

This link will also show the software list used to create this tutorial.

Tutorial GPO – Prevent user from overriding certificate errors on Microsoft Edge

On the domain controller, download the latest version of the Microsoft Edge template.

GPO - MICROSOFT EDGE POLICIES

Double-click the CAB file named MICROSOFTEDGEPOLICYTEMPLATES.

Extract the ZIP file named MICROSOFTEDGEPOLICYTEMPLATES.

In our example, all files were placed on the root of a directory named DOWNLOADS.

GPO - Microsoft Edge template

Access the directory named WINDOWS and copy the ADMX files to the Policy definitions directory.

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Access the correct language subdirectory.

Copy the ADML files to the correct language directory inside the Policy definitions.

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

Windows - 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 User configuration folder and locate the following item.

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Access the folder named SmartScreen settings.

Microsoft Edge - GPO Configuration Options

Disable the item named Allow users to proceed from the HTTPS warning page.

GPO - Allow users to proceed from the HTTPS warning page

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

Congratulations! You have finished the GPO creation.

Microsoft Edge GPO – Prevent user from overriding certificate errors

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.

If a website with certificate errors is accessed, Microsoft Edge will show an error.

This GPO setting blocks users from accessing these websites with certificate errors.