I'm not sure how you would do a hard-reset with a kid.
Try using a blunt instrument.
You are dating yourself.
Lots of computery people end up doing this, though.
And MS expects some preteen in Singapore to know better? Good luck with that.
That's an unfortunate example to choose, preteens in Singapore being likely to be both better educated and more law-abiding than their US equivalents. (And quite possibly more affluent too.)
"The Avis WIZARD decides if you get to drive a car. Your head won't touch the pillow of a Sheraton unless their computer says it's okay." -- Arthur Miller