Windows Sandbox
It's been a while after the VM mode for Windows XP inside Windows 7, now the new Windows 10 come up with new VM mode kinda, called as Windows Sandbox.
Anyway, before proceed with anything this Windows Sandbox only come with Windows 10 Pro or Enterprise, Insider build 18305 or newer. Windows Sandbox is a new lightweight desktop environment tailored for safely running applications in isolation.
I still waiting for this features to be present inside my machine. Let us wait and see how can we play around with it! :)