title: Windows Phone Emulator error, Hyper-V components not running, Windows 8.1 hosted in Windows Azure
body: <p>Environment:</p>
  
  <pre><code>Windows 8.1 Enterprise 64-bit hosted in Windows Azure
  Visual Studio Ultimate 2013 (Update 2)
  </code></pre>
  
  <p>I get the following error when trying to run a very simple phone app. I know MS says a VM-within-a-VM environment isn't supported, but I know it can work. Has anyone had success with this? Any help is greatly appreciated.</p>
  
  <pre><code>Windows Phone Emulator
  
  The Windows Phone Emulator wasn't able to ensure the virtual machine was running:
  
  Something happened while starting a virtual machine: 'Emulator WVGA 512 MB.' failed to start.
  (Virtual machine ID CADD6546-129A-4683-9A2D-52EAE777E888)
  
  The Virtual Machine Management Service failed to start the virtual machine 'Emulator WVGA 512 MB.'
  because one of the Hyper-V components is not running
  (Virtual machine ID CADD6546-129A-4683-9A2D-52EAE777E888).
  </code></pre>
  
  <p>Prior to seeing the error, the emulator emits the on-screen messages: </p>
  
  <pre><code>Loading ... 
  
  The Windows Phone OS is starting ...
  </code></pre>
  
  <p>And then the error. Of all the Hyper-V services available, the Hyper-V Virtual Machine Management service is the only one which is running.</p>
  
  <p>Thanks,</p>
  
  <p>Chris</p>