If this task is not created by your people, you can just ignore this event.
If the Answer is helpful, please click "Accept Answer" and upvote it.
Hello, today some of the task of a server were deleted:
(sorry for the spanish in event viewer)
This tasks were scheduled to run once each hour, and have not the check of the delete task if not used. (as viewed in https://answers.microsoft.com/en-us/windows/forum/all/task-scheduler-task-deleted-by-nt-authoritysystem/a113a626-16cd-4679-a210-898741d37241) Those task were running from months without problems. I'm a bit scared... anyone has a clue about the reason?