title: Grunt not running on Windows 8
body: <p>I got the following message when I try to run grunt:</p>
  
  <blockquote>
    <p>grunt
    'grunt' n'est pas reconnu en tant que commande interne
    ou externe, un programme exécutable ou un fichier de commandes.</p>
  </blockquote>
  
  <p>(using google translate)</p>
  
  <blockquote>
    <p>grunt 'grunt' is not recognized as an internal or external command, operable program or batch file.</p>
  </blockquote>
  
  <p>My computer is new, I just installed node.js on it, with windows 8. Maybe I missed something?</p>
  
  <p>I have grunt and other grunt-contrib in my node_modules folder. So I don't undertsand the issue here ^^ DO you have any idea? (I got no error on the shell when I installed it)</p>