Yes, 'scheduled' = 'unattended'. So no, it won't prompt. Given that you might not be there, in which case it will stall.
Bear in mind that in Vista-and-later, Windows (new) Scheduler runs Pro in a hidden session ('session-0' - that has no desktop). Hence, nowhere to display a prompt (and/or, you couldn't see it or respond to it if it did). I did tell you it was unlikely to help if Scheduled.
Bear in mind that in Vista-and-later, Windows (new) Scheduler runs Pro in a hidden session ('session-0' - that has no desktop). Hence, nowhere to display a prompt (and/or, you couldn't see it or respond to it if it did). I did tell you it was unlikely to help if Scheduled.