Task Scheduler failed to start. Additional Data: Error Value: 2147943726. What does this mean?

A Scheduled task failed to start leaving this message: Task Scheduler failed to start "\Fence Check Rota" task for user "Alan-Laptop\Alan". Additional Data: Error Value: 2147943726.

The task ran on the previous 2 nights without a problem the Action is: "C:\Program Files\Microsoft Office\Office12\Excel.exe" /r "C:\Users\Alan\Documents\HSC\Fence Check\Fence Check Auto Run.xlsm" and there is nothing wrong with it all files are where they are meant to be.

Following the "Event Log Online Help" takes me to a page that tells me to convert the above code to a decimal value and look it up  on another page. This has Error codes in bands from 0 to 15999. The value I have at 214793726 is obviuosly not an Octal value as it contains the digit 9 and if a decimal is higher than 15999 and if Hex then considerably higher.

Can anyone tell me what is failing?


Question Info

Last updated October 22, 2019 Views 369,511 Applies to:

My answer comes late, but hopefully usefull for those searching for an answer.

As some replied above, the change of password has a role causing that error.\

quickist fix (instead of microsoft lengthy ms.config modification) is:


in task scheduler, click on the scheduled job properties >>> then settings


in the last listed option:

"if the task is already running, the following rule appplies:"

select "stop the existing instance" from the drop down list.


save and exist.

This should fix it.


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