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EmmanuelTsouris/MSFT_WUOperationsSession.ps1

Last active January 11, 2018 19:04
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Windows Server 2016 and Nano Server CimMethods for Windows Updates using MSFT_WUOperationsSession
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MSFT_WUOperationsSession.ps1
Write-Host "Installed Updates"
$ci = New-CimInstance -Namespace root/Microsoft/Windows/WindowsUpdate -ClassName MSFT_WUOperationsSession
$result = $ci | Invoke-CimMethod -MethodName ScanForUpdates -Arguments @{SearchCriteria="IsInstalled=1";OnlineScan=$true}
$result.Updates
Write-Host "Missing Updates"
$ci = New-CimInstance -Namespace root/Microsoft/Windows/WindowsUpdate -ClassName MSFT_WUOperationsSession 
$result = $ci | Invoke-CimMethod -MethodName ScanForUpdates -Arguments @{SearchCriteria="IsInstalled=0";OnlineScan=$true}
$result.Updates
Write-Host "Installing the Updates"
$ci = New-CimInstance -Namespace root/Microsoft/Windows/WindowsUpdate -ClassName MSFT_WUOperationsSession
Invoke-CimMethod -InputObject $ci -MethodName ApplyApplicableUpdates
#Restart-Computer; exit
@EmmanuelTsouris
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EmmanuelTsouris commented May 24, 2017 •
edited
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@NonSecwitter I just tested it on Windows 10 version 10.0.10586.0 and it works fine. Any specific errors?

@jberezanski
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It seems there have been changes in recent Windows 10 / Windows Server versions and the MSFT_WUOperationsSession class has been replaced with a static MSFT_WUOperations class (http://itknowledgeexchange.techtarget.com/powershell/windows-update-change-server-1709/). On my Windows 10 1709 (10.0.16299.192) the following command works:

Invoke-CimMethod -Namespace root/microsoft/windows/windowsupdate -ClassName MSFT_WUOperations -MethodName ScanForUpdates -Arguments @{SearchCriteria="IsInstalled=0"}

(however, it currently returns 0 updates, so I can't test downloading/installing)

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