title: express-generator not getting installed
body: <p>Referring to <a href="http://expressjs.com" rel="nofollow">http://expressjs.com</a> guide, I'm trying to install express-generator as follows.</p>
  
  <p><code>npm install express-generator -g</code></p>
  
  <p>I've also tried <code>npm install -g express-generator</code> but nothing worked out. Below is the error in all cases.</p>
  
  <pre><code>C:\Sandbox\exp&gt;npm install -g express-generator
  npm ERR! Windows_NT 6.1.7601
  npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\
  node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "express-generator"
  npm ERR! node v6.1.0
  npm ERR! npm  v3.8.6
  npm ERR! code E404
  
  npm ERR! 404 Not Found: express-generator
  npm ERR! 404
  npm ERR! 404  'express-generator' is not in the npm registry.
  npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
  
  npm ERR! 404
  npm ERR! 404 Note that you can also install from a
  npm ERR! 404 tarball, folder, http url, or git url.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     C:\Sandbox\exp\npm-debug.log
  </code></pre>