How can I set up a batch job without a user password?

[wus]

I am trying to set up a batch job with the Windows task scheduler as described here: https://freefilesync.org/manual.php?topic=schedule-batch-jobs#windows

After entering the details as described, Windows pops up a properties dialog showing my entries. At the end it asks for my user password.

However, I don't have one on this computer!

Not entering a password in that last pop-up isn't possible, so I can't finish.

What can I do?