Fix Task Scheduler Error 2147750687
I recently had a Windows Scheduled Task fail with this kind of event in the Task Scheduler Operational log: Task Scheduler failed to start "\Folder\Example_Task" task for user "NT AUTHORITY\SYSTEM". Additional Data: Error Value: 2147750687. The important parts are the event source, the event ID, and the error value: Field Value Log Microsoft-Windows-TaskScheduler/Operational Event ID 101 Level Error OpCode Launch Failure Error Value 2147750687 Hex value 0x8004131F In plain English, this usually means Task Scheduler tried to start the task, but another instance of the same task was still running. The task did not fail because PowerShell could not start, and it did not necessarily fail because the account was wrong. It failed before the new run started because Task Scheduler blocked a second instance. ...