title: How to download dependencies using 'npm install'?
body: <p>I have a package.json file when I navigate to the folder eg: angular app(which contains package.json) and use command <code>npm install</code> it takes 10min to download just 6 dependencies what am I doing wrong why does it take so much time after finishing it downloads some 25-30 files which are not correct files. I am using windows.</p>
  
  <pre><code>{
        "name": "angular-2",
        "version": "1.0.0",
        "scripts": {
          "start": "concurrently \"npm run tsc:w\" \"npm run lite\" ",
          "tsc": "tsc",
          "tsc:w": "tsc -w",
          "lite": "lite-server",
          "typings": "typings",
          "postinstall": "typings install"
        },
        "license": "ISC",
        "dependencies": {
          "angular2": "2.0.0-beta.13",
          "systemjs": "0.19.25",
          "es6-shim": "^0.35.0",
          "reflect-metadata": "0.1.2",
          "rxjs": "5.0.0-beta.2",
          "zone.js": "0.6.6"
        },
        "devDependencies": {
          "concurrently": "^2.0.0",
          "lite-server": "^2.1.0",
          "typescript": "^1.8.9",
          "typings":"^0.7.11"
        }
  }
  </code></pre>