This PowerShell script will remove files, if they are older than one hour and if the Scheduled task is NOT running, and if the Scheduled task has not updated it log in the past two minutes.

win_remove_if_scheduled_task_not_running.ps1

#    20160601  Scott C. Krause
#    This PowerShell script will remove files, if they are older than one hour and if the Scheduled task is NOT running, and if the Scheduled task has not updated it log in the past two minutes.
Set-ExecutionPolicy Bypass
#    popu var if compr proc is not busy
$recent_logged = Get-Item C:\ltd_auto_image\logs\ltd_auto_image.txt | where-object {(new-timespan $_.LastWriteTime).minutes -ge 16}
if ($recent_logged) {
	#    if sched task / compr proc is state running del
	$ltd_auto_running = Get-ScheduledTask -TaskName ltd_auto_image | Where State -eq "Running" 
	#if ($recent_logged) {

		$myFolder = 'C:\ltd_auto_image\images_product\images_in\'
		$filesToDelete = Get-ChildItem -Path $myFolder | Where-Object {$_.PSIsContainer -eq $false -and $_.LastWriteTime -lt $(Get-Date).AddHours(-1)}
		$filesToDelete | Remove-Item -Force

		$myFolder_s = 'C:\ltd_auto_image\images_static\images_in\'
		$filesToDelete_s = Get-ChildItem -Path $myFolder_s | Where-Object {$_.PSIsContainer -eq $false -and $_.LastWriteTime -lt $(Get-Date).AddHours(-1)}
		$filesToDelete_s | Remove-Item -Force

	#} Else {
		#    Exec failsafe
	#}
}
exit

20160601 Scott C. Krause
This PowerShell script will remove files, if they are older than one hour and if the Scheduled task is NOT running, and if the Scheduled task has not updated it log in the past two minutes.