title: Error running npm command
body: <p>I have installed node.js
  <strong>But in command prompt npm command is not identified.</strong> 
  I have set environmental variable also. Kindly help me out.</p>
  
  <p>This is the response in command prompt:</p>
  
  <pre><code>C:\Users\593180.INDIA&gt;npm
  URIError: URI malformed
  at decodeURIComponent (native)
  at Url.parse (url.js:179:19)
  at Object.urlParse [as parse] (url.js:101:5)
  at Object.validateUrl [as validate] (C:\Program Files (x86)\nodejs\node_modu
  les\npm\node_modules\nopt\lib\nopt.js:157:13)
  at validate (C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\nop
  t\lib\nopt.js:205:24)
  at validate (C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\nop
  t\lib\nopt.js:172:11)
  at C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\nopt\lib\nopt
  .js:101:12
  at Array.map (native)
  at C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\nopt\lib\nopt
  .js:67:15
  at Array.forEach (native)
  C:\Program Files (x86)\nodejs\node_modules\npm\lib\npm.js:37
  throw new Error('npm.load() required')
        ^
  Error: npm.load() required
  at Object.npm.config.get (C:\Program Files (x86)\nodejs\node_modules\npm\lib
  \npm.js:37:11)
  at exit (C:\Program Files (x86)\nodejs\node_modules\npm\lib\utils\error-hand
  ler.js:49:27)
  at process.errorHandler (C:\Program Files (x86)\nodejs\node_modules\npm\lib\
  utils\error-handler.js:314:3)
  at process.EventEmitter.emit (events.js:95:17)
  at process._fatalException (node.js:272:26)
  </code></pre>