There's a setting to not show the scheduled task error: "Failed to handle windows scheduled task".
However, it appears that it still reports in some situations. I can repro this by creating a dummy scheduled task and then deleting it. On the delete, the error shows up, even when the setting in the image below is set (Settings -> System -> Solution settings).
Ideally it shouldn't give that warning message when we have it set to ignore those type of messages (the error is benign).