Windows Server 2008 R2 comes with Windows PowerShell installed by default, but the ISE (Integrated Scripting Environment) is not). It’s all in the name of building a more secure and less-bloated server OS. Windows 7 on the other hand has the ISE installed by default. To install the ISE you can use Server Manager or you can use PowerShell as shown below:
Please note: Only the red circled command is required, the rest is just for information gathering purposes.