Enable nested virtualization on Windows 10 Enterprise

It is now possible (and supported) to run nested virtualization hosts such as Hyper-V and VMware ESXi. This is enabled on a per-VM basis using the following command, please note that the VM must be in the powered off state before this command will work.

Set-VMProcessor -VMName DcLabServer01 -ExposeVirtualizationExtensions $true

When you try to install Hyper-V on a VM the role will fail to install unless this has been configured on the host. It is supported on Windows 10 as well as Server 2016.