title: Windows - 'jupyter' is not recognized as an internal or external command, operable program or batch file
body: <p>I'm on Windows command  line. 
  I installed Jupyter via pip 3. 
  I got this error, I suspect its path. </p>
  
  <pre><code>'jupyter' is not recognized as an internal or external command,
  operable program or batch file.
  </code></pre>
  
  <p>However when I run </p>
  
  <pre><code>where jupyter
  </code></pre>
  
  <p>It returns: </p>
  
  <pre><code>INFO: Could not find files for the given pattern(s).
  </code></pre>
  
  <p>Does this mean Jupyter hasn't downloaded properly? Because it seemed to be fine when using the pip3 command. </p>