title: Can't log in to Azure VM
body: <p>I have an Windows 8.1 VM on Azure that I've been successfully using for months. I login via the admin account that I originally set up.</p>
  
  <p>Today my RDP sessions keep telling me that the password is incorrect.</p>
  
  <p>So I used the Azure Portal to reset the password, but still can't get in. I've tried waiting for a while (in case updates were being installed) and I've restarted the machine.</p>
  
  <p>I notice that the Portal UI says 'Provide a new user name for the built-in administrator account'. I've tried changing it with no luck.</p>
  
  <p>Help?</p>