Windows 10 now does Windows within Windows within Windows
Call it Windows Inception. Microsoft has revealed that the latest Windows 10 Insider Preview supports nested virtualization, which lets you launch a virtual machine within another virtual machine — yes, you can run Windows inside of Windows inside of Windows. The trick is a new feature that supports hardware-based virtualization within a primary virtual machine, providing for that one extra layer. There are limits, of course. Features like dynamic memory won’t work, and nesting currently requires an Intel processor with VT-x support (most chips from the past several years will do). So long as everything lines up, though, you too can create a hall of mirrors effect on your PC — even if it doesn’t serve much of a practical purpose.
Source: Virtualization Blog
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