How to install Windows Updates on a core edition

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The simplest way to realize that is to create a script for that.

On MSDN you can find the following and it’s working like a charm.

Set updateSession = CreateObject("Microsoft.Update.Session")
Set updateSearcher = updateSession.CreateupdateSearcher()

WScript.Echo "Searching for updates…" & vbCRLF

Set searchResult = _
updateSearcher.Search("IsInstalled=0 and Type='Software'")

WScript.Echo "List of applicable items on the machine:"

For I = 0 To searchResult.Updates.Count-1
Set update = searchResult.Updates.Item(I)
WScript.Echo I + 1 & "> " & update.Title
Next

If searchResult.Updates.Count = 0 Then
WScript.Echo "There are no applicable updates."
WScript.Quit
End If

WScript.Echo vbCRLF & "Creating collection of updates to download:"

Set updatesToDownload = CreateObject("Microsoft.Update.UpdateColl")

For I = 0 to searchResult.Updates.Count-1
Set update = searchResult.Updates.Item(I)
WScript.Echo I + 1 & "> adding: " & update.Title
updatesToDownload.Add(update)
Next

WScript.Echo vbCRLF & "Downloading updates…"

Set downloader = updateSession.CreateUpdateDownloader()
downloader.Updates = updatesToDownload
downloader.Download()

WScript.Echo  vbCRLF & "List of downloaded updates:"

For I = 0 To searchResult.Updates.Count-1
Set update = searchResult.Updates.Item(I)
If update.IsDownloaded Then
WScript.Echo I + 1 & "> " & update.Title
End If
Next

Set updatesToInstall = CreateObject("Microsoft.Update.UpdateColl")

WScript.Echo  vbCRLF & _
"Creating collection of downloaded updates to install:"

For I = 0 To searchResult.Updates.Count-1
set update = searchResult.Updates.Item(I)
If update.IsDownloaded = true Then
WScript.Echo I + 1 & "> adding:  " & update.Title
updatesToInstall.Add(update)
End If
Next

WScript.Echo  vbCRLF & "Would you like to install updates now? (Y/N)"
strInput = WScript.StdIn.Readline
WScript.Echo

If (strInput = "N" or strInput = "n") Then
WScript.Quit
ElseIf (strInput = "Y" or strInput = "y") Then
WScript.Echo "Installing updates…"
Set installer = updateSession.CreateUpdateInstaller()
installer.Updates = updatesToInstall
Set installationResult = installer.Install()

'Output results of install
WScript.Echo "Installation Result: " & _
installationResult.ResultCode
WScript.Echo "Reboot Required: " & _
installationResult.RebootRequired & vbCRLF
WScript.Echo "Listing of updates installed " & _
"and individual installation results:"

For I = 0 to updatesToInstall.Count – 1
WScript.Echo I + 1 & "> " & _
updatesToInstall.Item(i).Title & _
": " & installationResult.GetUpdateResult(i).ResultCode
Next
End If

Save this to a file named WUA_SearchDownloadInstall.vbs as example and than you simply can run cscript WUA_SearchDownloadInstall.vbs and he automatically searches for Updates and than asks to install them.

There is also the option trough the sconfig tool but this doesn’t seem to always work like it should, at least in my case.

Sconfig is the server config tool you now have as default on every core server. It opens automatically and trough option 6 (Windows Server 2012 R2 and 2016) you can download and install updates.

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