Write-Output "Installing PSWindowsUpdate"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force
Install-Module PSWindowsUpdate -Force -Confirm:$False

Write-Output "Running Get-WindowsUpdate"
Get-WindowsUpdate -MicrosoftUpdate -Category 'Critical Updates', 'Security Updates' -Verbose 

Write-Output "Running Invoke-WUJob"
Invoke-WUJob -Script {ipmo PSWindowsUpdate;Get-WindowsUpdate -Install -MicrosoftUpdate -Category 'Critical Updates', 'Security Updates' -AcceptAll -IgnoreReboot -Verbose | Out-File C:\WindowsUpdate.log} -RunNow -Confirm:$false

Write-Output "Get-ScheduledTask -TaskName PSWindowsUpdate"
Get-ScheduledTask -TaskName PSWindowsUpdate

Write-Output "(Get-ScheduledTask -TaskName PSWindowsUpdate).Actions"
(Get-ScheduledTask -TaskName PSWindowsUpdate).Actions

Write-Output "Get-ScheduledTaskInfo -TaskName PSWindowsUpdate"
Get-ScheduledTaskInfo -TaskName PSWindowsUpdate

Write-Output "Get-Content C:\WindowsUpdate.log"
Get-Content "C:\WindowsUpdate.log"

Write-Output "Waiting for PSWindowsUpdate Task to Complete"
$stopWatch = [System.Diagnostics.Stopwatch]::StartNew()
while($true) {
  $taskStatus = (Get-ScheduledTask -TaskName PSWindowsUpdate).State
  Write-Output "PSWindowsUpdate Task Status - $taskStatus"

  if ($taskStatus -ne "Ready" ) {
    $elapsed = "{0:D2}:{1:D2}:{2:D2}" -f $stopWatch.Elapsed.Hours, $stopWatch.Elapsed.Minutes, $stopWatch.Elapsed.Seconds
    Write-Output "Waiting for completion of task PSWindowsUpdate - $elapsed"
    Write-Output "Get-Content C:\WindowsUpdate.log"
    Get-Content "C:\WindowsUpdate.log"
    Start-Sleep -s 10
  }
  else {
    Write-Output "PSWindowsUpdate Task Completed"
    break
  }
}

Write-Output "Get-Content C:\WindowsUpdate.log"
Get-Content "C:\WindowsUpdate.log"
$taskStatus = (Get-ScheduledTask -TaskName PSWindowsUpdate).State
Write-Output "PSWindowsUpdate Task Status - $taskStatus"
Write-Output "Get-WUHistory"
Get-WUHistory