Windows Updates/Patches: Unterschied zwischen den Versionen

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== Install Windows Update ==
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== Search, Download & Install Windows Updates ==
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''This works on Windows Server 2016, 2019, 2022 and maybe higher.''
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''Because of the Windows Update dilemma with different Windows versions, I wrote the following script that should works on Windows Server 2016, 2019, 2022 and maybe higher.''
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<source lang="powershell">
 
<source lang="powershell">
 
$MSUpdateSearcher = New-Object -ComObject Microsoft.Update.Searcher
 
$MSUpdateSearcher = New-Object -ComObject Microsoft.Update.Searcher
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     }
 
     }
 
}  
 
}  
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</source>
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=== Windows Update Dilemma ===
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==== Windows Server 2019 ====
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Microsoft ships with Windows Server 2019 the PowerShell-Module "WindowsUpdateProvider" that is handy and this works like following:
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<source lang="powershell">
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Import-Module WindowsUpdateProvider
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$availableUpdates = Start-WUScan
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if ($availableUpdates.Count -gt 0) {
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    Write-Host "[$(Get-Date -Format HH:mm:ss)] Following $($availableUpdates.Count) Updates are about to be installed:"
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    $availableUpdates | Format-Table Title, MsrcSeverity
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    $null = Install-WUUpdates -Updates $availableUpdates
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    Write-Host "[$(Get-Date -Format HH:mm:ss)] $($availableUpdates.Count) Updates has been succesfully installed"
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}
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</source>
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==== Windows Server 2016 ====
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Microsoft said on Windows Server 2016 you should use the CIM-Class MSFT_WUOperationsSession like following:
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<source lang="powershell">
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$cimInstance = New-CimInstance -Namespace root/Microsoft/Windows/WindowsUpdate -ClassName MSFT_WUOperationsSession
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$updateScanResult = Invoke-CimMethod -InputObject $cimInstance -MethodName ScanForUpdates -Arguments @{SearchCriteria = "IsInstalled=0"; OnlineScan = $true }
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$availableUpdates = $updateScanResult.Updates
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Invoke-CimMethod -InputObject $cimInstance -MethodName ApplyApplicableUpdates
 
</source>
 
</source>
  

Version vom 18. Januar 2022, 10:42 Uhr

Search, Download & Install Windows Updates

Because of the Windows Update dilemma with different Windows versions, I wrote the following script that should works on Windows Server 2016, 2019, 2022 and maybe higher. 

$MSUpdateSearcher = New-Object -ComObject Microsoft.Update.Searcher
$Updates = $MSUpdateSearcher.Search("IsInstalled=0 AND IsHidden=0").Updates
 
$MSUpdateCollection = New-Object -ComObject Microsoft.Update.UpdateColl
foreach($Update in $Updates) {
    $MSUpdateCollection.Add($Update) | Out-Null
}
 
if($MSUpdateCollection.Count -gt 0) {
    Write-Host "Accept EULA, if is necessary."
    foreach($Update in $MSUpdateCollection) {
        if($Update.EulaAccepted -eq 0) {$Update.AcceptEula()}
    }
 
    Write-Host "Download the selected updates."
    $MSUpdateSession = New-Object -ComObject Microsoft.Update.Session
    $MSUpdateDownloader = $MSUpdateSession.CreateUpdateDownloader()
    $MSUpdateDownloader.Updates = $MSUpdateCollection
    $MSUpdateDownloader.Download()
 
    Write-Host "Install the downloaded updates."
    $MSUpdateInstaller = New-Object -ComObject Microsoft.Update.Installer
    $MSUpdateInstaller.Updates = $MSUpdateCollection
    $InstallResult = $MSUpdateInstaller.Install()
 
    if ($InstallResult.RebootRequired) {
        Restart-Computer -Force
    }
}

Windows Update Dilemma

Windows Server 2019

Microsoft ships with Windows Server 2019 the PowerShell-Module "WindowsUpdateProvider" that is handy and this works like following: 

Import-Module WindowsUpdateProvider
$availableUpdates = Start-WUScan
if ($availableUpdates.Count -gt 0) {
    Write-Host "[$(Get-Date -Format HH:mm:ss)] Following $($availableUpdates.Count) Updates are about to be installed:"
    $availableUpdates | Format-Table Title, MsrcSeverity 
    $null = Install-WUUpdates -Updates $availableUpdates
    Write-Host "[$(Get-Date -Format HH:mm:ss)] $($availableUpdates.Count) Updates has been succesfully installed"
}

Windows Server 2016

Microsoft said on Windows Server 2016 you should use the CIM-Class MSFT_WUOperationsSession like following: 

$cimInstance = New-CimInstance -Namespace root/Microsoft/Windows/WindowsUpdate -ClassName MSFT_WUOperationsSession
$updateScanResult = Invoke-CimMethod -InputObject $cimInstance -MethodName ScanForUpdates -Arguments @{SearchCriteria = "IsInstalled=0"; OnlineScan = $true }
$availableUpdates = $updateScanResult.Updates
Invoke-CimMethod -InputObject $cimInstance -MethodName ApplyApplicableUpdates


Remove Windows Update

 wusa /uninstall /kb:<KB-Number>
Von „http://wiki.webperfect.ch/index.php?title=Windows_Updates/Patches&oldid=3193“