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SCHED_S_TASK_NO_VALID_TRIGGERS
SCHED_S_TASK_NO_VALID_TRIGGERS is a successful Task Scheduler status that says the task was registered, but no enabled trigger can start it on a schedule. It does not prove that the executable action is broken; the problem is in the trigger configuration or in its enabled state.
What to inspect
- Enumerate the registered task’s triggers and record each trigger type, identifier, enabled flag, start boundary, end boundary, and repetition settings.
- Check whether a deployment tool created an empty
Triggerscollection or disabled every trigger while leaving the task itself enabled. - Distinguish scheduled execution from manual execution: a task can still be started on demand when its settings permit it, even though it has no valid schedule trigger.
Useful correction
Repair the intended trigger rather than adding an arbitrary daily schedule just to silence the status. For time and calendar triggers, confirm the required start boundary and schedule fields; for event, logon, boot, and registration triggers, verify that the trigger is enabled and applies to the intended machine or account.
Microsoft: Task Scheduler status codes · Microsoft: Trigger object · Microsoft: AllowDemandStart
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