title: Windows Task Scheduler "Launch request ignored, instance already running"
body: <p>I have a task which triggers every 5 min every day. But recently, I found the task always failed between only 8:00 am to 9:00 am but all the other tasks (some trigger every 1 min) do not have any problem. So I have no idea what's wrong. </p>
  
  <p>From log below, I can see there was a trigger at 8:20 and it finally terminated at 8:30. Actually, the task is quite simple to take less than 1 min to finish. So I have no idea why there are "Launch request ignored, instance already running" warnings. </p>
  
  <p><a href="https://i.stack.imgur.com/kLrpL.png" rel="noreferrer"><img src="https://i.stack.imgur.com/kLrpL.png" alt="Task Log"></a></p>