title: WP8 emulator stopped working
body: <p>Ok so I was working fine with the WP8 emulator but suddenly after going into Hyper-V manager it stopped working, didn't make any change and even deleted the virtual machine to be created again on debug but no luck</p>
  
  <p>I have tried with the various emulator images but none of them seems to work anymore, event viewer shows no errors on Hyper-V.</p>
  
  <p>What I have noticed is that the virtual machine starts in Hyper-V goes to Windows logo, then hangs for a few minutes in a black screen and turns off afterwards automatically, tried starting it without debuging, directly from hyper-v but nothing works, should I reinstall the SDK? seems to me this is not install related since it worked before</p>
  
  <p>Thanks</p>