Hi,
Windows Sandbox has the following properties:
Part of Windows: Everything required for this feature is included in Windows 10 Pro and Enterprise. There's no need to download a VHD.
Pristine: Every time Windows Sandbox runs, it's as clean as a brand-new installation of Windows.
Disposable: Nothing persists on the device. Everything is discarded when the user closes the application.
Secure: Uses hardware-based virtualization for kernel isolation. It relies on the Microsoft hypervisor to run a separate kernel that isolates Windows Sandbox from the host.
Efficient: Uses the integrated kernel scheduler, smart memory management, and virtual GPU.
For more information, please check the following article about the difference between Windows 10 Sandbox and virtualization technology:
https://askleo.com/whats-the-difference-between-a-sandbox-and-a-virtual-machine/
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Thanks for your time!
Best Regards,
Anne