title: issues in installing Cordova and ionic
body: <p>why couldn't install Cordova... it says power shell is not recognized. What does it mean? and how do I fix it? I have tried some basic commands like
  changing my path
  System variables &gt; Path &gt; C:\Users\me\AppData\Local\Android\Sdk\platform-tools</p>
  <pre><code>npm install -g cordova-res
  npm install -g ionic cordova-res
  npm install cordova-res-generator -g
  
  cordova-res-generator
  rror: Command failed: powershell (Get-CimInstance -ClassName Win32_OperatingSystem).caption
  'powershell' is not recognized as an internal or external command,
  operable program or batch file.
  
  
      at makeError (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\node_modules\windows-release\node_modules\execa\index.js:174:9)
      at Function.module.exports.sync (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\node_modules\windows-release\node_modules\execa\index.js:338:15)
      at windowsRelease (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\node_modules\windows-release\index.js:39:19)
      at osName (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\node_modules\os-name\index.js:39:18)
      at new Insight (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\node_modules\insight\lib\index.js:37:13)
      at new RelentlessInsight (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\src\telemetry.js:31:1)
      at Object.&lt;anonymous&gt; (C:\Users\Node\AppData\Roaming\npm\node_modules\cordova\src\telemetry.js:39:15)
      at Module._compile (internal/modules/cjs/loader.js:1063:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
      at Module.load (internal/modules/cjs/loader.js:928:32) {
    code: 1,
    stdout: '',
    stderr: &quot;'powershell' is not recognized as an internal or external command,\r\n&quot; +
      'operable program or batch file.\r\n',
    failed: true,
    signal: null,
    cmd: 'powershell (Get-CimInstance -ClassName Win32_OperatingSystem).caption',
    timedOut: false
  }
  
  </code></pre>