Powershell DSC: Unable to load module xPSDesiredStateConfiguration
Responding to a comment to my original question, I checked that the module was being listed when executing Get-Module -ListAvailable. I noticed that when I ran the command it was listing the directory containing the module twice. I then realized that while trying to solve an earlier problem I had added the $env:ProgramFiles\WindowsPowerShell\Modules directory to the PSModulePath environment variable, so the modules were being duplicated and causing problems. After removing the path from the PSModulePath environment variable, everything works!
First, you need to install the package. You can download it from here:
https://gallery.technet.microsoft.com/xPSDesiredStateConfiguratio-417dc71d