title: Why is my Set-DisplayResolution command in Powershell missing?
body: <p>I'm using Parallels on my Mac to run the Windows 8.1 operating system. Parallels has a quirk that resets the screen resolution to the highest level every time it is restarted. Thus, I'd like to write a short Powershell script that will automatically sets my screen resolution to the one I prefer. The problem is, using either the <code>Set-ScreenResolution</code> or the <code>Set-DisplayResolution</code> gives me the following error:</p>
  
  <blockquote>
    <p>Set-DisplayResolution : The term 'Set-DisplayResolution' is not
    recognized as the name of a cmdlet, function, script  file, or
    operable program. Check the spelling of the name, or if a path was
    included, verify that the path is correct  and try again. At line:1
    char:1
    + Set-DisplayResolution
    + ~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : ObjectNotFound: (Set-DisplayResolution:String) [], CommandNotFoundException
        + FullyQualifiedErrorId : CommandNotFoundException</p>
  </blockquote>
  
  <p>Any idea why this is happening?</p>
  
  <p>I'm using Windows 8.1 64 bit. The version of my Powershell is 4.0. I'm using Parallels 9 as my virtual machine on the Yosemite operating system (mac).</p>