In bleeding edge Windows builds, Microsoft introduced a way to quickly and easy spin up a Windows VM. "Windows Sandbox," as they call it, allows users to create "isolated, temporary, desktop environment where you can run untrusted software without the fear of lasting impact to your PC." Everything needed to run the sandbox is built into Windows 10 Pro or Enterprise builds 18305 or newer, and the feature can be enabled by checking the "Windows Sandbox" checkbox in the Windows Features menu. This feature actually leaked out of Microsoft's Feedback hub as "InPrivate Desktop" back in August, but Microsoft seems to have dropped that name. Windows Sandbox builds on the technologies used within Windows Containers. Windows containers were designed to run in the cloud. We took that technology, added integration with Windows 10, and built features that make it more suitable to run on devices and laptops without requiring the full power of Windows Server.