UCAS course change question

Hello, does anyone know if I can reapply on UCAS after I withdraw my application within 14 days after submitting because I want to change on course in one of the same schools in my five UCAS choices?

If you want to swap course at the same uni, just contact that uni to make the change, (you can do this after 14 days, that figure is just for swapping your chcoices via UCAS). No need to withdraw your app.
@PQ may be able to advise about reapplying if you've already withdrawn.