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What is Windows Sandbox?

Published in Windows Security 3 mins read

Windows Sandbox provides a secure, isolated environment to run applications without affecting your main operating system. It's like a virtual machine, but much lighter and more convenient.

Key Features and Benefits

Here's a breakdown of what makes Windows Sandbox useful:

  • Isolation: Software installed inside the Windows Sandbox environment remains "sandboxed" and runs separately from the host machine (reference: 19-Jul-2024). This means any changes or potential malware stay within the sandbox.
  • Temporary: A sandbox is temporary. When it's closed, all the software, files, and the state are deleted (reference: 19-Jul-2024). This ensures a clean slate each time you use it.
  • Lightweight: Unlike traditional virtual machines, Windows Sandbox utilizes the same Windows kernel as the host operating system. This reduces the overhead and resource requirements.
  • Security: You can test untrusted applications or browse suspicious websites without risking your main system.
  • Built-in: Windows Sandbox is a feature built into Windows 10 Pro, Enterprise, and Education editions, version 1903 and later, and Windows 11.

Practical Use Cases

Here are some examples of when you might use Windows Sandbox:

  • Testing unknown software: Downloaded a program from the internet and not sure if it's safe? Run it in Sandbox first.
  • Browsing suspicious websites: Visit websites that you're unsure about without exposing your main system to potential threats.
  • Trying out configuration changes: Test new settings or configurations before applying them to your primary system.
  • Isolating development environments: Create a clean environment for testing code or software development.

How Windows Sandbox Works

Feature Description
Kernel Sharing Uses the same Windows kernel as the host OS, minimizing size and resource usage.
Hardware Virtualization Relies on hardware-based virtualization for isolation. Ensure virtualization is enabled in your BIOS/UEFI settings.
Dynamic Base Image Utilizes a copy of the existing Windows installation, creating a clean and disposable environment.
Integration Seamlessly integrates with the host operating system, allowing you to copy and paste files between the host and the sandbox. However, remember that anything copied into the Sandbox is deleted when the Sandbox is closed.

Getting Started

To use Windows Sandbox, you'll need:

  1. Windows 10 Pro, Enterprise, or Education (version 1903 or later) or Windows 11.
  2. Hardware virtualization enabled in your BIOS/UEFI.
  3. At least 4GB of RAM (8GB recommended), 1GB of free disk space (SSD recommended), and 2 CPU cores (4 cores with hyperthreading recommended).

To enable Windows Sandbox:

  1. Search for "Turn Windows features on or off" in the Start menu.
  2. Select the "Windows Sandbox" checkbox.
  3. Click "OK" and restart your computer.

Once enabled, you can find Windows Sandbox in the Start menu.

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