title: npm global install does not add packages to PATH on Windows 8.1
body: <p>When I run <code>npm install -g &lt;package&gt;</code> it installs the packages in my user/AppData/Roaming/npm/npm_modules/ folder. This sub-folder is not in my PATH so if I try to run the package without explicitly calling the entire path the call fails with a <code>'&lt;package&gt;' is not recognized as an internal or external command, operable program or batch file.</code></p>
  
  <p>What can I do to fix this?</p>
  
  <p>Thanks</p>