WindowsUpdate powershell

WindowsUpdate.ps1

Write-Host "--- Running Windows Update ---"
Write-Host "Searching for updates..."
$updateSession = new-object -com "Microsoft.Update.Session"
$updateSearcher = $updateSession.CreateupdateSearcher()
$searchResult = $updateSearcher.Search("IsInstalled=0 and Type='Software' and AutoSelectOnWebSites=1")
Write-Host "List of applicable items on the machine:"
if ($searchResult.Updates.Count -eq 0) {
 Write-Host "There are no applicable updates."
}
else
{
 $downloadReq = $False
 $i = 0
 foreach ($update in $searchResult.Updates){
  $i++
  if ( $update.IsDownloaded ) {
   Write-Host $i">" $update.Title "(downloaded)"
  }
  else
  {
   $downloadReq = $true
   Write-Host $i">" $update.Title "(not downloaded)"
  }
 }
 if ( $downloadReq ) {
  Write-Host "Creating collection of updates to download..."
  $updatesToDownload = new-object -com "Microsoft.Update.UpdateColl"
  foreach ($update in $searchResult.Updates){
   $updatesToDownload.Add($update) | out-null
  }
  Write-Host "Downloading updates..."
  $downloader = $updateSession.CreateUpdateDownloader() 
  $downloader.Updates = $updatesToDownload
  $downloader.Download()
  Write-Host "List of downloaded updates:"
  $i = 0
  foreach ($update in $searchResult.Updates){
   $i++
   if ( $update.IsDownloaded ) {
    Write-Host $i">" $update.Title "(downloaded)"
   }
   else
   {
    Write-Host $i">" $update.Title "(not downloaded)"
   }
  }
 }
 else
 {
  Write-Host "All updates are already downloaded."
 }
 $updatesToInstall = new-object -com "Microsoft.Update.UpdateColl"
 Write-Host "Creating collection of downloaded updates to install..." 
 foreach ($update in $searchResult.Updates){
  if ( $update.IsDownloaded ) {
   $updatesToInstall.Add($update) | out-null
  }
 }
 if ( $updatesToInstall.Count -eq 0 ) {
  Write-Host "Not ready for installation."
 }
 else
 {
  Write-Host "Installing" $updatesToInstall.Count "updates..."
  $installer = $updateSession.CreateUpdateInstaller()
  $installer.Updates = $updatesToInstall
  $installationResult = $installer.Install()
  if ( $installationResult.ResultCode -eq 2 ) {
   Write-Host "All updates installed successfully."
  }
  else 
  {
   Write-Host "Some updates could not installed."
  }
  if ( $installationResult.RebootRequired ) {
   Write-Host "One or more updates are requiring reboot."
   #Write-Host "Reboot system now !!"
   #shutdown.exe /r /t 0
   # Write-Host "Shutdown system now !!"

   # shutdown.exe /s /t 0
  }
  else 
  {
   Write-Host "Finished. Reboot are not required."
  }
 }
}