title: Configure Multiprocessing in python to use forkserver
body: <p>How can I configure multiprocessing <strong>in Windows</strong> to use the 'forkserver' method?
  whenever I start up IPython console and type:</p>
  
  <pre><code>import multiprocessing
  multiprocessing.set_start_method('forkserver')
  </code></pre>
  
  <p>the error:</p>
  
  <pre><code>ValueError: cannot find context for 'forkserver'
  </code></pre>
  
  <p>occurs.</p>