From pcworld.com
Microsoft may be positioning its easy-peasy Windows Sandbox within the Windows 10 May 2019 Update as a safe zone for testing untrusted applications, but it’s much more than that. Windows Sandbox, and sandboxing PC apps in general, give you a solution for trying a “utility” that may be malware, or a website that you’re not sure about. You could leave those potentially dangerous elements alone, but with Sandbox, you can be a little more adventurous.