PowerShell ISE (Integrated Scripting Environment) gets installed by default with Windows 7  or Windows Server 2008 R2 but doesn't show in the start menu. There are two ways to enable PowerShell ISE.

  Using PowerShell

1. Open Powershell Window
2. Execute following cmdlets.

 Import-Module ServerManager 
 Add-WindowsFeature PowerShell-ISE
 

Using Server Explorer

1. Open the Server Explorer
2. Navigate to the Features Node
3. Right-click on Features node, select “Add Features”
4. You will get Add Features wizard with list of features provided with checkboxes.
5. Check the “Windows PowerShell Integrated Scripting Environment (ISE)”
6. Click on Next button
7. Click on Install button.