What version of Windows Management Framework is installed?
See this documentation from Microsoft:
https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell?view=powershell-5.1
In the "Upgrading existing Windows Powershell" section, it says specifically:
The installation package for PowerShell comes inside a WMF installer. The version of the WMF installer matches the version of PowerShell; there's no stand alone installer for Windows PowerShell.
I think this is the answer guys. Run $PSVersionTable.PSVersion to get the version.
I know this is an old question, but for others that find this from a Google Search:
I would like to argue that $PSVersionTable.PSVersion is the most reliable indicator of the version of WMF. See below examples.
Windows 7 fresh install:
Name Value
---- -----
PSVersion 2.0
WSManStackVersion 2.0
CLRVersion 2.0.50727.5420
BuildVersion 6.1.7601.17514
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
Windows 7 after .NET 4.5 and WMF 4 installation:
Name Value
---- -----
PSVersion 4.0
WSManStackVersion 3.0
SerializationVersion 1.1.0.1
CLRVersion 4.0.30319.18408
BuildVersion 6.3.9600.16406
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion 2.2
Windows 7 after WMF 5 installation:
Name Value
---- -----
PSVersion 5.0.10586.117
WSManStackVersion 3.0
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.10586.117
CLRVersion 4.0.30319.18408
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
Windows 10, which includes WMF 5 out of the box:
Name Value
---- -----
PSVersion 5.0.10586.122
WSManStackVersion 3.0
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.10586.122
CLRVersion 4.0.30319.42000
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
So as you can see, the version for $PSVersionTable.WSManStackVersion.Major only seems to change on the WMF 4 install and then stays at 3. While $PSVersionTable.PSVersion.Major seems to report the accurate version of WMF.
In PowerShell it's available from $PSVersionTable.WSManStackVersion.Major
My home Windows 7 system:
PS C:\Users\Brian> $PSVersionTable
Name Value
---- -----
CLRVersion 2.0.50727.5485
BuildVersion 6.1.7601.17514
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
PS C:\Users\Brian> $PSVersionTable.WSManStackVersion.Major
2
PS C:\Users\Brian>
Then after installing a newer Windows Management Framework:
PS C:\Users\Brian> $PSVersionTable
Name Value
---- -----
PSVersion 4.0
WSManStackVersion 3.0
SerializationVersion 1.1.0.1
CLRVersion 4.0.30319.34209
BuildVersion 6.3.9600.16406
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion 2.2
PS C:\Users\Brian>
If it's installed, you will find it in "appwiz.cpl". Just remember to look under "View installed updates", as the WMF is distributed as a Windows update with unique KB-numbers for the different Windows versions.
