How to enable or disable printing in Application Guard

In addition to Windows Defender and third-party antivirus tools for Windows 11, there are more ways to protect your system. Microsoft Defender Application Guard is one of the features of Windows that helps you block viruses and malware.

Although this feature is very popular in most users' PCs, some may find it limiting as it may limit certain functions such as printing. Anyway, in this article we will show you how to enable or disable it depending on your needs.

What is Microsoft Defender Application Guard Managed mode?

Microsoft Defender Application Guard is a service in Windows 11 that provides additional protection against malware. When turned on, Microsoft Defender Application Guard provides a secure environment to run your applications.

This allows you to run applications in an isolated environment to prevent them from performing malicious actions. When enabled, Application Guard enforces a number of restrictions on what an application can do on the system, such as:

• Restrict third-party modification – Application Guard protects against malicious Programs modify or read files on the system.
• Prevent the installation of malicious files – Application Guard also prevents malicious programs from installing software as an administrator.
• Create a secure environment – Create and manage a list of trusted applications allowed to run on endpoints.

How to enable printing in Application Guard?

1. Use the Windows Security Center

1. button, type Windows Security Center in the search bar, and then click Open. Windows
2. Click Applications and Browser Controls in the left pane, and then under Standalone Browsing, select "Change Application Guard Settings".
3. To enable printing, turn on the button under "Print File".
4. Restart your computer to implement the changes.
5. If you want to disable it, just toggle the off button.

If for some reason you have enabled printing but are still unable to enable it, corrupt cache and cookies may accumulate on your Edge browser. You may need to clear corrupt cache and cookies and try printing again.

It's also worth checking that your printer driver has been updated and that the printer is in good working order.

2. Use Registry Editor

1. Press to openRuncommand. WindowsR
2. Type regedit in the dialog box to open Registry Editor.
3. Navigate to the following location: <strong>Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Hvsi</strong>
4. Double-click "Enable Printer" to modify it, then Enter 1 under Value Data to enable it, then click OK.
5. If you want to disable it, set Value Data to 0.

Expert Tip:

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Given that not every Windows user is tech-savvy, we must provide a disclaimer at this point. The registry can be a very dangerous place to edit if you don't know what you're doing. If anything goes wrong, you could render your PC inoperable.

We recommend that you create a restore point before editing the registry. This is useful if you're not sure what changes you want to make. Rolling back any changes is easier when you have a restore point.

How do I know if my Application Guard is enabled?

The easiest way to know if Application Guard is enabled is through Group Policy. To check, follow these steps:

1. Press to open and run the command. WindowsR
2. Type gpedit.msc in the dialog box and click to open Group Policy. Enter
3. Navigate to the following location: <strong>Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Application Guard\Turn on Microsoft Defender Application Guard in Managed Mode setting</strong>
4. If the "Enabled" checkbox is not selected, it means it has not been enabled. You can select it and click Apply and OK to save the changes.

When you enable this feature, when you enter a URL in Edge, Application Guard will verify that it is a trusted site. If not, it will be redirected to an isolated environment.

More good news is that the feature is now widespread, and Chrome and Firefox users can also enjoy protection by downloading the Windows Defender Application Guard extension.

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