Password for task scheduler in windows

Question

Hello, I have updated my domain user password and I have not performed update actions on a scheduled task that runs under my user and yet the task runs.
In this post they make the same observation:

https://social.technet.microsoft.com/Forums/en-US/6b32e531-4900-4742-b652-0d05fd4668a4/do-we-still-need-to-update-password-for-task-scheduler-in-windows?forum=ws2016

I would like to know at what time the scheduled task will fail or detect that change, or if it is not really necessary to perform the update in said task.

Answer 1

Here is my understanding

if your task connect to few resources(computer/other services) and it has service ticket for those services, it should run till the service tickets are valid(10 hours by default). But once it will go to get a TGT from DC, the job should fail.

Answer 2

Hello @Edbarrag ,

This is normal, since most of schedule task type will use a Kerberos ticket to authenticate, meaning that it may still have a valid ticket with the old authentication.

You will need eventually to update the credentials on the task.

If this is a local task, I would suggest to run a NT AUTHORITY\SYSTEM to prevent this issue in the future.

Hope this helps with your query,

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