title: What is the Azure Guest operating system?
body: <p>According to this <a href="https://github.com/Azure/azure-content/blob/master/articles/cloud-services/cloud-services-guestos-update-matrix.md" rel="nofollow">article</a> Azure supports only <code>Windows Server 2012 R2</code> <code>Windows Server 2012</code>
  <code>Windows Server 2008R2</code>.</p>
  
  <p>That's mean that I cannot deploy anything else?</p>