to Install Powershell v5 on your workstation or servers (windows Versions 7/8.1 | Servers W2K8R2/W2K12/W2K12R2)
connect to the following website and download the relevant package relevant for your CPU architecture .
Click on the Download Button and choose the package match your O/S and CPU architecture.
Save it on your computer ,and Run it ,this file extension is *.msu -refers to Microsoft Self Update (file)
Apply with the message and accept with the license terms –
you’ll be required to Restart your computer for the update to take effect.