Install Windows Management Framework 5.1
----------------------------------------

Our PS Proxy is running Windows Server 2012 R2, which means that it does not come
with WMF 5.1. We'll go to the link documented in :ref:`required_management_software_and_prerequisites`
and download the installer ``Win8.1AndW2K12R2-KB3191564-x64.msu``.

Double-click the installer to get started. The process is straightforward; finish
by restarting the computer.

.. note::

   If the PS Proxy had been running Windows Server 2016 or later, or Windows 10
   Professional or later, then WMF 5.1 is already part of the operating system
   and we would not have needed to install it manually.