How can I determine what version of PowerShell is installed on a computer, and indeed if it is installed at all?
Powershell – Determine installed PowerShell version
powershell
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Best Solution
Use
$PSVersionTable.PSVersionto determine the engine version. If the variable does not exist, it is safe to assume the engine is version1.0.Note that
$Host.Versionand(Get-Host).Versionare not reliable - they reflect the version of the host only, not the engine. PowerGUI, PowerShellPLUS, etc. are all hosting applications, and they will set the host's version to reflect their product version — which is entirely correct, but not what you're looking for.