PowerShell ISE for Windows Server

To install the ISE for PowerShell on Windows Server 2012, just as in Server 2008 R2, you can select the feature, or simply execute the following in a PowerShell command prompt:

1: Import-Module ServerManager
2: Add-Windowsfeature PowerShell-ISE

Reference: PowerShell ISE: Not Installed By Default in Windows Server 2008 R2