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checkUpdates.ps1
###########################################################
# Check For Windows Updates, Then Install
# Aimed At Remote Monitoring And Management Solutions (RMM)
# LogMeIn Central, AVG Managed Workplace Et. al
###########################################################
######################################################
# Provide The Literal Path To Required System Binaries
######################################################
$cscriptBinary = "C:\Windows\System32\cscript.exe"
$scBinary = "C:\Windows\System32\sc.exe"
$netBinary = "C:\Windows\System32\net.exe"
#########################
# Supply checkUpdates.vbs
#########################
$vbsCheckUpdates = @"
'ServerSelection values
ssDefault = 0
ssManagedServer = 1
ssWindowsUpdate = 2
ssOthers = 3
'InStr values
intSearchStartChar = 1
dim strTitle
Set updateSession = CreateObject("Microsoft.Update.Session")
Set updateSearcher = updateSession.CreateupdateSearcher()
updateSearcher.ServerSelection = ssWindowsUpdate
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)
addThisUpdate = false
If update.InstallationBehavior.CanRequestUserInput = true Then
WScript.Echo I + 1 & "> skipping: " & update.Title & _
" because it requires user input"
Else
If update.EulaAccepted = false Then
WScript.Echo I + 1 & "> note: " & update.Title & _
" has a license agreement that must be accepted:"
WScript.Echo update.EulaText
WScript.Echo "Do you accept this license agreement? (Y/N)"
''strInput = WScript.StdIn.ReadLine
strInput = "Y"
WScript.Echo
If (strInput = "Y" or strInput = "y") Then
update.AcceptEula()
addThisUpdate = true
Else
WScript.Echo I + 1 & "> skipping: " & update.Title & _
" because the license agreement was declined"
End If
Else
addThisUpdate = true
End If
End If
If addThisUpdate = true Then
WScript.Echo I + 1 & "> adding: " & update.Title
updatesToDownload.Add(update)
End If
Next
If updatesToDownload.Count = 0 Then
WScript.Echo "All applicable updates were skipped."
WScript.Quit
End If
WScript.Echo vbCRLF & "Downloading updates..."
Set downloader = updateSession.CreateUpdateDownloader()
downloader.Updates = updatesToDownload
downloader.Download()
Set updatesToInstall = CreateObject("Microsoft.Update.UpdateColl")
rebootMayBeRequired = false
WScript.Echo vbCRLF & "Successfully downloaded updates:"
For I = 0 To searchResult.Updates.Count-1
set update = searchResult.Updates.Item(I)
If update.IsDownloaded = true Then
WScript.Echo I + 1 & "> " & update.Title
updatesToInstall.Add(update)
If update.InstallationBehavior.RebootBehavior > 0 Then
rebootMayBeRequired = true
End If
End If
Next
If updatesToInstall.Count = 0 Then
WScript.Echo "No updates were successfully downloaded."
WScript.Quit
End If
If rebootMayBeRequired = true Then
WScript.Echo vbCRLF & "These updates may require a reboot."
End If
WScript.Echo vbCRLF & "Would you like to install updates now? (Y/N)"
''strInput = WScript.StdIn.ReadLine
strInput = "Y"
WScript.Echo
If (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
'ServerSelection values
' START NOTES
' Reference:
' <https://gallery.technet.microsoft.com/scriptcenter/VB-Script-to-Check-and-620579cd>
' END NOTES
"@
###########################
# Supply enableOptional.vbs
###########################
$vbsEnableOptional = @"
Set ServiceManager = CreateObject("Microsoft.Update.ServiceManager")
ServiceManager.ClientApplicationID = "My App"
'add the Microsoft Update Service, GUID
Set NewUpdateService = ServiceManager.AddService2("7971f918-a847-4430-9279-4a52d1efe18d",7,"")
' START NOTES
' Reference:
' <https://docs.microsoft.com/en-gb/windows/desktop/Wua_Sdk/opt-in-to-microsoft-update>
' <https://blogs.technet.microsoft.com/danbuche/2010/01/06/enabling-and-disabling-microsoft-update-in-windows-7-via-script/>
' END NOTES
"@
#######################
# Write Out *.vbs Files
#######################
$vbsCheckUpdates | Out-File checkUpdates.vbs -Force
$vbsEnableOptional | Out-File enableOptional.vbs -Force
###########################
# Enable 'wuauserv' Service
###########################
& $scBinary config wuauserv start= auto
& $netBinary start wuauserv
###############################
# Interpret Written *.vbs Files
###############################
& $cscriptBinary enableOptional.vbs
& $cscriptBinary checkUpdates.vbs
######################
# Clean-Up *.vbs Files
######################
Remove-Item .\enableOptional.vbs -Force
Remove-Item .\checkUpdates.vbs -Force
#############
# START NOTES
#############
## You Must Run This PowerShell Script As An Administrator.
## Leverages 'Here-Strings' To Output The Self-Contained VBScript(s).
## In Future, Instead Of Writing Out To A File, Perhaps VBScript(s) Can Be Piped Directly To The Interpreter.
## Use 'C:\Windows\System32\where.exe' To Find Literal Binary Paths.
##
## OR
##
## 'Get-Command'.
###########
# END NOTES
###########
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