This is a re-working of a previous script I wrote to install updates on your computer. This version does not use WinForms.

 

######################################################################################################################################
# Windows Update through Powershell (No Forms) v1.0 ######################################################################################################################################
clear-host
Write-host "Starting Update Process..." -foregroundcolor blue
Write-host ""
$UpdateSession = New-Object -com Microsoft.Update.Session
$UpdateSearcher = $UpdateSession.CreateupdateSearcher()
$SearchResult =  $UpdateSearcher.Search("IsAssigned=1 and IsHidden=0 and IsInstalled=0")
$UpdateLowNumber = 0
$UpdateHighNumber = 1
$NumberofUpdates = $searchResult.Updates.Count

while ($UpdateHighNumber -le $NumberofUpdates) {
$UpdatesToDownload = New-Object -com Microsoft.Update.UpdateColl
$Update = $searchResult.Updates.Item($UpdateLowNumber)

if ($Update.EulaAccepted -eq 0) {$Update.AcceptEula()}

[void]$UpdatesToDownload.Add($Update)
$Downloader = $UpdateSession.CreateUpdateDownloader()
$Downloader.Updates = $UpdatesToDownload
[void]$Downloader.Download()

$UpdatesToInstall = New-Object -com Microsoft.Update.UpdateColl
[void]$UpdatesToInstall.Add($Update)

$Title = $update.Title
$KBArticleIDs = $update.KBArticleIDs
$SecurityBulletinIDs = $update.SecurityBulletinIDs
$MsrcSeverity = $update.MsrcSeverity
$LastDeploymentChangeTime = $update.LastDeploymentChangeTime
$MoreInfoUrls = $update.MoreInfoUrls

Write-host "Installing Update $UpdateHighNumber of $NumberofUpdates"
Write-host "Title: $Title"
if ($KBArticleIDs -ne "") {Write-host "KBID: $KBArticleIDs"}
if ($SecurityBulletinIDs -ne "") {write-host "Security Bulletin: $SecurityBulletinIDs"}
if ($MsrcSeverity -eq "Critical") {Write-host "Rating: $MsrcSeverity" -foregroundcolor red} else {Write-host "Rating: $MsrcSeverity"}
if ($LastDeploymentChangeTime -ne "") {Write-host "Dated: $LastDeploymentChangeTime"}
if ($MoreInfoUrls -ne "") {Write-host "$MoreInfoUrls"}

$Installer = $UpdateSession.CreateUpdateInstaller()
$Installer.Updates = $UpdatesToInstall
$InstallationResult = $Installer.Install()
Write-host "--------------------------------------------"
if ($InstallationResult.ResultCode -eq "2") {Write-host "  Installation Succeeded" -foregroundcolor green}  else {Write-host "  INSTALLATION FAILED, check event log for details" -foregroundcolor red}
if ($InstallationResult.RebootRequired -eq "False") {Write-host "  Reboot not required" -foregroundcolor green} else {Write-host "  REBOOT REQUIRED" -foregroundcolor red}
Write-host "--------------------------------------------"
Write-host ""
Write-host ""

$Title = ""
$KBArticleIDs =  ""
$SecurityBulletinIDs =  ""
$MsrcSeverity =  ""
$LastDeploymentChangeTime =  ""
$MoreInfoUrls =  ""

$UpdateLowNumber = $UpdateLowNumber + 1
$UpdateHighNumber = $UpdateHighNumber + 1

if ($ProgressValue -lt $NumberofUpdates) {$ProgressValue = $ProgressValue + 1}
}

$ComputerStatus = New-Object -com Microsoft.Update.SystemInfo
 if ($ComputerStatus.RebootRequired -eq 1) {cmd /c $env:WinDir\System32\Shutdown.exe -r -f -t 10 -c "Patching Complete."}