Powershell and Task Scheduler - Trigger script if file directory has not changed since last 30 minutes

I've following code to trigger $powershell_code_to_run when file location is not updated for last 30 mins. However, Script is not triggering Start-Process 'C:\windows\system32\mspaint.exe' or Start-Process 'C:\windows\system32\calc.exe'.

My $task variable is coming blank. Not sure if that's an issue

    $powershell_code_to_run = {      # ALL CODE TO RUN GOES HERE      $DIR = "C:\Scripts\ASA"          Write-Host "Start"      $LastWriteTime = (Get-Item $Dir).LastWriteTime        IF ($LastWriteTime -lt (Get-Date).AddMinutes(-30)) {          Start-Process 'C:\windows\system32\calc.exe'      } ELSE {          Start-Process 'C:\windows\system32\mspaint.exe'      }      # AND END HERE.  }    # Base64 encode code to run.  $encodedCommand = [System.Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes($powershell_code_to_run.ToString()))  $encodedCommand  # Action, using EncodedCommand removes the need to escape quotes etc.  $action = New-ScheduledTaskAction -Execute 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe' -Argument "-WindowStyle Hidden -EncodedCommand $encodedCommand"  $action  # Task trigger                                  Start :00 next hour                             Repeat every 30 minutes, repeat forever  $triggers = New-ScheduledTaskTrigger -Once -At ((Get-Date)) -RepetitionInterval (New-TimeSpan -Minutes 30)  # $triggers = New-ScheduledTaskTrigger -Once -At ([datetime]::Now.AddMinutes(1)) -RepetitionInterval (New-TimeSpan -Minutes 2)    Write-Host "Triggers"  $triggers  # Settings for the task.  $settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -StartWhenAvailable  $settings  # Other settings  $principal = New-ScheduledTaskPrincipal -RunLevel Highest -UserId "LOCALSERVICE" -LogonType ServiceAccount  $principal  # Name of the task  $taskName = 'Check folder for changes'  $taskName  # The actual task object  $task = New-ScheduledTask -Action $action -Settings $settings -Trigger $triggers -Description 'Check a folder if there has been any changes in the last 30 minutes.' -Principal $principal  $task  # Remove the old task  Unregister-ScheduledTask -TaskName $taskName -Confirm:$false -ErrorAction SilentlyContinue    #  Create new  Register-ScheduledTask -TaskName $taskName -InputObject $task -TaskPath '\'  

https://stackoverflow.com/questions/65729944/powershell-and-task-scheduler-trigger-script-if-file-directory-has-not-changed January 15, 2021 at 11:07AM