How To Create Nested Virtualization Using Hyper-V In The Guest?

Hi,

I try to do nested virtualization with VMware Player v7 and Windows Server 2012 R2 as the guest but fail to install the Hyper-V role.

According to thisVMware document, it's possible to run a VM within a VM with Player 7: "Virtualized HV is fully supported for virtual hardware version 9 or later VMs on hosts that support Intel VT-x and EPT or AMD-V and RVI. To enable virtualized HV, select VM->Settings and navigate to the processor settings screen. Check the box next to  "Virtualize Intel VT-x/EPT or AMD-V/RVI."“

First, I tried on 2 different computers (1 server running Windows Server 2008 R2 and 1 laptop running Windows 7 Pro) whose CPU support "Intel® VT-x with Extended Page Tables (EPT)" according to Intel's official website:

• Intel® Core™ i5-3427U Processor
• Intel® Xeon® Processor E5620

Second, in the VM CPU settings, I tried the following options:

In each case, when I try to add the Hyper-V role in the guest, it fails with the message "Hyper-V cannot be installed: A hypervisor is already running":

I also tried using VMware Workstation 11 instead of Player 7 but it's the same.

Can someone tell me what's wrong? How can I do nested virtualization using Hyper-V in the guest?

Thanks in advance.