How to Install Microsoft Defender Application Guard on Windows 11

This article explains how to install or remove Microsoft Defender Application Guard for the Microsoft Edge browser in Windows 11.

Why use Microsoft Defender Application Guard?

This tool helps keep your computer safe. It works with Microsoft Edge and Microsoft Office. It creates a secure “sandbox” for your browser. This keeps risky websites and files from touching your personal files or trusted system settings.

What happens when done?

Once finished, you can browse the internet in an isolated environment. If you visit a dangerous site, the threat stays trapped in the sandbox. Your main computer remains protected from viruses and malware.

How to install or remove it using the Windows Security app

You can manage this feature easily through your settings.

1. Open the Windows Security app. You can find this by clicking your Start menu and typing “Windows Security.”

2. Click on the App & browser control section.

3. Under the Isolated browsing area, click the link to install or uninstall the feature.

4. A new window will appear. Check the box next to Microsoft Defender Application Guard to install it. If you want to remove it, uncheck the box.

Windows will download the files needed. If you are uninstalling, you will be asked to restart your computer to finish the process.

How to install or remove it using PowerShell

You can also use commands to change this setting quickly.

Note: You must run these steps with admin privileges. Open Windows PowerShell or Command Prompt as an administrator.

To install the feature, run this command:

Dism /online /Enable-Feature /FeatureName:"Windows-Defender-ApplicationGuard"

To remove the feature, run this command:

Dism /online /Disable-Feature /FeatureName:"Windows-Defender-ApplicationGuard"

If the computer asks if you want to restart, type Y and press Enter.

How to start using it

Once installed, you can open a secure browser window by pressing CTRL + SHIFT + Q. You can also click the three dots in the corner of Edge and select New Application Guard window.

If you do not see this option, you may need to turn on “Secure Boot” in your computer’s BIOS settings.

Summary

Microsoft Defender Application Guard adds a layer of security by isolating your browsing activity. You can install or remove it through the Windows Security app or by using simple commands in PowerShell. Using this feature helps protect your device from online threats by running your browser in a secure, virtual environment.

For more information, refer to the official Microsoft documentation at Microsoft Defender Application Guard Overview

Reference: Microsoft.com