Hi
I've tried googling this problem but can't find anything useful
Both my front windows on my fiesta st make a chiming/knocking noise as though the glass is knocking against something in the door! It's at it's worst when the windows are fully up but still does it to an extent any other position apart from when the windows are fully down! They also both make creaking sounds when they are opened/closed!

Is this an easy fix or am I going to need new regulators or something?

Thanks for any help