title: Docker Installation Error on Windows behind Firewall
body: <p>I'm trying to install Docker on a Windows computer but I get this message: </p>
  
  <p><a href="https://i.stack.imgur.com/I8KMR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/I8KMR.png" alt="Docker Quickstart Terminal Error Message"></a></p>
  
  <blockquote>
    <p>Running pre-create checks...<br>
    (default) No default Boot2Docker ISO found locally, downloading the latest release...<br>
    Error with pre-create check: "Get <a href="https://api.github.com/repos/boot2docker/boot2docker/releases/latest" rel="noreferrer">https://api.github.com/repos/boot2docker/boot2docker/releases/latest</a>: dial tcp 192.30.252.124:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond."<br>
    Looks like something went wrong in step 'Checking if machine default exists'...<br>
    Press any key to continue...  </p>
  </blockquote>
  
  <p>Any suggestions on how to resolve this? </p>