title: There is an instance of anaconda navigator already running error
body: <p>Previously my anaconda navigator was not responding so I have rebooted my computer and now when I am trying to open anaconda navigator it pop-ups an error with "there is an instance of anaconda navigator already running".</p>
  
  <p>OS: Windows 10</p>
  
  <p><img src="https://i.stack.imgur.com/pKGrs.jpg" alt="This is a message on pop up window"> </p>