ExchangePro: ERROR: Configuration Failed. PowerShell is not installed on the local machine and is (4313697)

Issue

I receive the below error message when trying to install Exchange Pro.

ERROR: Configuration Failed. PowerShell is not installed on the local machine and is required for Exchange Pro to continue.

This is a 2008 R2 server, so PowerShell is preinstalled. I’ve also gone through the prerequisite steps in the user guide. 

Solution

This is due to the management rights on the Exchange Pro server for your current login.
Perform a Ctrl + Right Click on the Exchange Pro installer icon and choose run as Administrator. This should allow you to move forward.