title: failing to launch virtual box ubuntu VM on Windows
body: <p>I installed VirtualBox on Windows.  I set it up to boot Ubuntu14.  I enabled the virtualization option for the CPU to enabled (before that, the VM would not boot up complaining about i686 CPU).  I rebooted the OS.  After this, when I try starting the VM, it gives the following error:</p>
  
  <pre><code>The VM session was closed before any attempt to power it on.
  
  
  Result Code: 
  E_FAIL (0x80004005)
  Component: 
  SessionMachine
  Interface: 
  ISession {7844aa05-b02e-4cdd-a04f-ade4a762e6b7}
  </code></pre>
  
  <p>What did I do wrong and how can I fix it?  Thanks.  I did not post on serverfault since this is not a server but a laptop.  </p>