title: How to upgrade PowerShell version from 2.0 to 3.0
body: <p>The OS that I am using is Windows 7, and the PowerShell version that is installed here is 2.0. Is it possible for me to upgrade it to version 3.0 or 4.0?</p>
  
  <p>Because there are cmdlets that version 2.0 can't recognize.</p>