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Hi I currently have a very basic PowerShell script that runs when a computer is installed with Windows (any version). This script is below

Set-ExecutionPolicy -Scope Process -ExecutionPolicy Unrestricted -Force [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072 Write-Output "Installing OS Updater Modules Please Wait...." Write-Output " " Install-PackageProvider -Name NuGet -Force Install-Module -Name PSWindowsUpdate -Force Write-Output " " Write-Output "Installing Updates...." Write-Output " " Install-WindowsUpdate -AcceptAll -Install -IgnoreReboot | Out-File "c:\temp\WindowsUpdate.log" -force

As I said very simple code this will install a few modules then update windows with any updates, however, it only works with PowerShell 5 and above is there a way I can check what version is installed then carry on with the script if it is PowerShell 4 and below stop executing the script.

I know it's possible to install Windows Management Framework 5.1 into the install.wim/esd which will get around this but for people who don't have this, I would like the script to stop and not have any errors.

There is a bult in variable for this - $PSversiontable.psversion — Scepticalist
– Scepticalist, Commented Mar 26, 2021 at 8:18

FletcherF1 · Accepted Answer · 2021-03-26 09:10:38Z

u can use cmdlet named "get-host", it works in ps version >=2.0

if ((get-host).version.major -le 4) { #code } else { #code }

or if u need exact match , u can use switch construction

switch ((get-host).version.major) { 4 {#installcode4} 5 {#installcode5} 7 {#installcode7} }

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