Steps
These are one-time setup steps for Powershell.
Run Powershell as Administrator
Powershell > right click > Run as administrator
Type and press enter
Set-ExecutionPolicy RemoteSigned -Force
References
https://docs.microsoft.com/en-us/skypeforbusiness/set-up-your-computer-for-windows-powershell/download-and-install-windows-powershell-5-1