This tutorial will show you how to install or uninstall Microsoft Defender Application Guard for Microsoft Edge in Windows 11 Pro, Education, and Enterprise editions.
Microsoft Defender Application Guard opens Microsoft Edge in a Hyper-V isolated browsing environment like a sandbox to better protect your device and data from malware.
References:

Microsoft Defender Application Guard
Learn about Microsoft Defender Application Guard and how it helps combat malicious content and malware out on the Internet.
docs.microsoft.com

System requirements for Microsoft Defender Application Guard
Learn about the system requirements for installing and running Microsoft Defender Application Guard.
docs.microsoft.com
You must be signed in as an administrator to install or uninstall Microsoft Defender Application Guard
Microsoft Defender Application Guard, including the Windows Isolated App Launcher APIs, is being deprecated for Microsoft Edge for Business and will no longer be updated. Please download the Microsoft Edge For Business Security Whitepaper to learn more about Edge for Business security capabilities.
[Update - October 2024]: Starting with Windows 11, version 24H2, Microsoft Defender Application Guard, including the Windows Isolated App Launcher APIs, is no longer available.
Contents
- Option One: Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Windows Features
- Option Two: Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Windows Security
- Option Three: Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in PowerShell
- Option Four: Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Command Prompt
EXAMPLE: Microsoft Defender Application Guard for Microsoft Edge
Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Windows Features
1 Open Windows Features (OptionalFeatures.exe).
2 Check (install) or uncheck (uninstall - default) Microsoft Defender Application Guard for what you want, and click/tap on OK (see screenshots below)
3 When Windows has completed the requested changes, click/tap on Restart now to restart the computer and finish installing or uninstalling this feature. (see screenshot below)
Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Windows Security
1 Open Windows Security, and click/tap on App & browser control. (see screenshot below)
2 Do step 3 (install) or step 4 (uninstall) below for what you want.
3 Install Microsoft Defender Application Guard for Microsoft Edge
A) Click/tap on the Install Microsoft Defender Application Guard link under Isolated browsing. (see screenshot below)
B) If prompted by UAC, click/tap on Yes to approve.
C) Check Microsoft Defender Application Guard, and click/tap on OK (see screenshots below)
D) Go to step 5 below.
4 Uninstall Microsoft Defender Application Guard for Microsoft Edge
This is the default setting.
A) Click/tap on the Uninstall Microsoft Defender Application Guard link under Isolated browsing. (see screenshot below)
B) If prompted by UAC, click/tap on Yes to approve.
C) Uncheck Microsoft Defender Application Guard, and click/tap on OK (see screenshots below)
D) Go to step 5 below.
5 When Windows has completed the requested changes, click/tap on Restart now to restart the computer and finish installing or uninstalling this feature. (see screenshot below)
Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in PowerShell
1 Open an elevated Windows Terminal, and select Windows PowerShell.
2 Copy and paste the command below you want to use into the elevated PowerShell, and press Enter. (see screenshots below)
(Install Microsoft Defender Application Guard)
Enable-WindowsOptionalFeature -Online -FeatureName "Windows-Defender-ApplicationGuard"
OR
(Uninstall Microsoft Defender Application Guard - default)
Disable-WindowsOptionalFeature -Online -FeatureName "Windows-Defender-ApplicationGuard"
3 When prompted to restart the computer, type Y, and press Enter when ready to do so.
Install or Uninstall Microsoft Defender Application Guard for Microsoft Edge in Command Prompt
1 Open an elevated Windows Terminal, and select Command Prompt.
2 Copy and paste the command below you want to use into the elevated command prompt, and press Enter. (see screenshots below)
(Install Microsoft Defender Application Guard)
Dism /online /Enable-Feature /FeatureName:"Windows-Defender-ApplicationGuard"
OR
(Uninstall Microsoft Defender Application Guard - default)
Dism /online /Disable-Feature /FeatureName:"Windows-Defender-ApplicationGuard"
3 When prompted to restart the computer, type Y when ready to do so.
That's it,
Shawn Brink
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