title: Genymotion: "The specified virtual device was not found in VirtualBox list"
body: <p>One day I tried to launch a Genymotion virtual device and got:</p>
  
  <p><img src="https://i.stack.imgur.com/96doH.png" alt="enter image description here"></p>
  
  <p>Everything used to work fine. I haven't done any update. I use Genymotion 2.3.1 and Oracle VirtualBox 4.3.12 on Windows 7 SP1 x64 Ultimate. What could have caused the issue to arise, and how to fix it?</p>
  
  <p>My configuration:</p>
  
  <p><img src="https://i.stack.imgur.com/VamFK.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/AoF4Z.png" alt="enter image description here"></p>
  
  <p>When I tried to launch the VM from VirtualBox, I get:</p>
  
  <p><img src="https://i.stack.imgur.com/nkktf.png" alt="enter image description here"></p>
  
  <pre><code>Failed to open a session for the virtual machine Samsung Galaxy S5 - 4.4.4 - API 19 - 1080x1920.
  
  The VM session was closed before any attempt to power it on.
  
  Result Code: E_FAIL (0x80004005)
  Component: SessionMachine
  Interface: ISession {12f4dcdb-12b2-4ec1-b7cd-ddd9f6c5bf4d}
  </code></pre>