Get WMI Namespaces with PowerShell

Here is a quick way to get a list of WMI namespaces on a computer using PowerShell.  Notice that this requires that you run it as an administrator.

#Requires -RunAsAdministrator

Function Get-WMINamespaceEnum ($NS) {
    Write-Output $ns
    Get-CimInstance "__Namespace" -Namespace $NS -ErrorAction SilentlyContinue | 
        ForEach-Object { Get-WMINamespaceEnum "$ns\$($_.name)"   }
} 

#Example
Get-WMINamespaceEnum 'root' | Sort-Object

The example code starts at the top WMI level, “root”.  You could also start at the standard for Windows, “Root\CimV2”.