Windows Sandbox is a feature built into the Windows 11 and Windows 10 operating systems that allows users to install and test unverified applications or visit websites in a lightweight virtual environment while protecting the main system from potential threats.

In general, this system provides a safe and isolated testing environment, similar to a virtual machine, but easier to use.

Next, this article will provide detailed steps to install, configure, and use the Windows Sandbox feature on Windows 11.

Introduction to Windows Sandbox Function

Windows Sandbox (also known as Windows Sandbox) is essentially a lightweight virtualization solution focused on providing efficient and secure virtual environments. Compared with traditional virtual machines, Windows Sandbox has the following characteristics:

• Automated configuration: No need for you to manually prepare ISO files or set up virtual hard disks, Windows Sandbox will automatically create a virtual environment of the same version as the main system.
• Isolation: Windows Sandbox uses hardware virtualization technology to isolate the sandbox environment from the main system, and uses kernel isolation technology to prevent malware or applications in the sandbox from accessing the kernel of the main system. Greatly improves the safety during use.
• Ready-to-use: When using the sandbox, there is no need to activate the instance or perform complex configuration, all necessary settings are completed automatically.
• Always like new: Every time you launch Sandbox, a fresh Windows 11 or Windows 10 environment is generated. Once the sandbox is closed, all data is automatically cleared, preventing malware or applications from remaining in the sandbox.

Comparison between sandbox and traditional virtual machine

Both Windows Sandbox and traditional virtual machines can be used to isolate applications or test environments, but there are some key differences between the two:

Although Windows Sandbox is not as resilient as traditional virtual machines, it provides excellent security and helps users safely run unverified applications or visit potentially risky websites.

Prerequisites for using Windows Sandbox

To successfully install and run the Windows Sandbox feature, the system must meet the following conditions:

• Support hardware virtualization: The CPU must support hardware virtualization technology and enable this function in BIOS or UEFI.
• Memory requirements: At least 4GB RAM is required, but for smoother operation, 8GB RAM or more is recommended.
• Storage recommendations: It is recommended to use SSD hard disk to improve data reading and writing speed.
• Operating system version: Requires Windows 10 Version 1903 and above or the Professional or Enterprise edition of Windows 11.
• Nested virtualization: If you want to run Windows Sandbox on a Hyper-V virtual machine, you need to enable nested virtualization.

Check whether hardware virtualization is enabled

In Windows 10 and 11 systems, you can verify whether hardware virtualization is enabled through the "Performance" tab of "Task Manager".

Use "Task Manager" to view virtualization enablement status

If not enabled, please enable it in the motherboard UEFI. This function may be displayed as "Virtualization Technology", "Intel Virtual Technology" or "SVM mode", etc.

How to enable the Windows Sandbox feature

Here are two ways to enable Windows Sandbox in Windows 10 and Windows 11:

Method 1: Use "Windows Features"

1Use the Windows R shortcut key to open the "Run" dialog box, enter optionalfeatures, and then press the Enter key.

2 In the "Windows Features" window, find and check the "Windows Sandbox" option.

Use "Windows Features" to install Windows Sandbox

3 Click the "OK" button to start the installation process.

4 After the installation is completed, restart the system according to the system prompts.

Method 2: Using PowerShell

1Use the Windows R shortcut key to open "Run", enter powershell, and then press Ctrl Shift Enter to open the Windows PowerShell window with administrator privileges.

2Execute the following command in the PowerShell window:

Enable-WindowsOptionalFeature -Online -FeatureName Containers-DisposableClientVM -All

Install Windows Sandbox using PowerShell

3After the installation is completed, the system will prompt you to restart your computer.

Using Windows Sandbox environment

After the restart is complete, you can find "Windows Sandbox" in the "Start" menu. After opening it, you will see a clean Windows desktop environment,

Using Windows Sandbox

In a Sandbox environment, you can:

• Safely install and run suspicious or unverified applications and test them.
• Visiting potentially risky websites will not pose a security threat to the main system.
• Use shortcut keys Ctrl Alt Break or Pause to switch between windowed and full-screen modes.
• When you close Windows Sandbox, all state and data are automatically deleted. The next time you open the sandbox, a completely new environment will be generated again.

Custom Windows Sandbox Configuration

By customizing the configuration of Windows Sandbox, you can better control the performance and behavior of your virtual environment. The following are the steps:

1 Create a wsb file: In any text editor (such as Notepad), create a new text file and save it with a .wsb extension, such as SandboxCFG.wsb.

2 Edit XML configuration: Use the following XML structure as a template and edit the configuration according to your needs:

Enable 
Enable 

 
C:UsersYourNameDocuments 
C:UsersWDAGUtilityAccountDesktopDocuments 
false 



4096 
 
explorer.exe C:UsersWDAGUtilityAccountDesktopDocuments

3 Save the configuration: After completing the configuration editing, save the .wsb file.

4 Start Windows Sandbox: Double-click the created .wsb file to start a custom configured Windows Sandbox instance.

Every element in the configuration file is optional, and you can add or exclude any settings as needed. For example, if you do not need to map the folder, you can completely omit the part. Likewise, the element can be omitted if the memory size is not allocated manually. For more configuration items, please refer to: Windows Sandbox Configuration.

Overall, Windows Sandbox is a useful feature built into Windows 11 and Windows 10 that can help you safely test applications or visit potentially risky websites. It uses hardware virtualization and kernel isolation technology to isolate the sandbox environment from the main system, thereby providing good security.

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