I want to schedule a task from the command prompt (using schtasks.exe) to run once and delete the task entry from the Task Scheduler Library after completion.

After looking through the usage guide, I settled on this command:

schtasks /create /TN SomeTaskName /TR "notepad.exe" /SC ONCE /ST 12:00 /Z

...but that gives me this error (I'm running Windows 10)

ERROR: The task XML is missing a required element or attribute.

Looking it up online, I found out about this KB article that suggests using the /V1 switch to get rid of the error but on adding /V1 I am asked for the current user password to schedule the task. I don't want that.

Is there any way to schedule a task to be executed once and then deleted from the task library after execution completes?

I've tried this, but it didn't work:

schtasks /create /TN SomeTaskName /TR "schtasks /delete /TN SomeTaskName /F" /SC ONCE /ST 12:00

A kludgy solution I came up with that works is this:

schtasks /create /TN SomeTaskName /TR "notepad.exe" /SC MINUTE /MO 1 /ST 12:00 /ET 12:02 /Z

It has the side-effect of performing the task thrice before stopping.


You may want to consider using Powershell since you're on Windows 10. I believe you can use Unregister-ScheduledTask -TaskName applog -Confirm:$false to delete a scheduled task without a confirmation prompt.

Someone else has reported a similar problem, to which a user recommended adding -Compatibility V1 (although I'm not sure if this still yields a user credential prompt).


The option /z does not work in conjunction with the start type once. If you use the option /v1 the command executes without errors, but the task is not deleted after the next logon/execution.

To delete a task, Windows requires an expiration date, which is not possible with once.

You may delete the task 'manually', e.g. using something like this:

... /TR "cmd.exe /c notepad.exe && schtasks /delete /TN SomeTaskName /f" ...

This command executes notepad.exe, waits for its completition and if successfull deletes the task SomeTaskName. If you want to delete the task even in case of an error, just use a single &.


Microsoft suggests adding /V1 to your command to work-around this issue.


This would give you:

schtasks /create /TN SomeTaskName /TR "notepad.exe" /SC ONCE /ST 12:00 /V1 /Z
  • 2
    Thanks for answering but I've already mentioned in my question that I am not keen on using this switch as doing so requires me to enter my password to schedule the task. – Vinayak Dec 21 '16 at 14:16
  • Sorry. I got reading the docs and forgot your V1 section! Given the odd XML error output from SCHTASKS compared to its usual output it looks like you have stumbled upon a bug. – Carl Dec 21 '16 at 14:45
  • I think I solved this issue but I don't remember how. It was quite a while ago. I'll post an answer if I remember what I did to get around this. – Vinayak Dec 22 '16 at 14:11

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.