Changing windows XP product key
Quick bit of background, I'm a first line tech in a secondary school, a few months back we had the "This is not a genuine copy of Windows" nonsense. Short story we found out that our windows key might have been leaked, MS gave us a new one and we sorted out the dozen or so computers that had the problem. Every now and again a new one crops up and we effect the product key change as detailed on the MS techsite: How to change the Volume Licensing product key on a computer that is running Windows XP Service Pack 1 and later versions of Windows XP.
However recently we have had two or three computers that, when you come to change the key and get to the part where you select Yes, I want to telephone a customer service representative to activate Windows. Nothing happens. The button depresses as if clicked but then nothing. I was wondering if anyone had any ideas why this happens and how it can be resolved?