Microsoft has released an Insider Preview Build that includes the new Windows Sandbox feature. If you’re on the Fast track, you can download and start using it today.

What is Sandbox?

In short, Windows Sandbox is half app, half virtual machine. It lets you quickly spin up a virtual clean OS imaged from your system’s current state so that you can test programs or files in a secure environment that’s isolated from your main system. When you close the sandbox, it destroys that state. Nothing can get from the sandbox to your main installation of Windows, and nothing remains after closing it.

RELATED: Windows 10’s New Sandbox Feature is Everything We’ve Always Wanted

How Do I Get It?

Currently, the only way to use Sandbox is to join the Windows Insider program and put your PC on the fast track for updates. You shouldn’t do this on your main PC. The fast track is potentially unstable and can lead to data loss, crashes, or other nasty surprises. Since Microsoft has trouble releasing stable versions of Windows outside of testing, you should keep the Insider builds to a non-production PC.

Once you have installed Insider build 18305 (or higher), installing and starting Sandbox is a simple process.

Step One: Make Sure Virtualization is Enabled

First, you’ll need to make sure virtualization is enabled in your system’s BIOS. It typically is by default, but there’s an easy way to check. Fire up Task Manager by hitting Ctrl+Shift+Esc and then head to the “Performance” tab. Make sure the “CPU” category is selected on the left and on the right, just make sure it says “Virtualization: Enabled.”

If virtualization is not enabled, you’ll need to enable it in your PC’s BIOS settings before you continue.

Step Two: Turn On Nested Virtualization if You’re Running the Host System in a Virtual Machine (Optional)

Read the remaining 26 paragraphs