I think you have to run the cleaner after uninstalling Adobe software to be sure nothing is left behind
I think you may need to DE-activate and uninstall CS6 and run the cleaner to make sure all traces of all Adobe software is gone, then install CS6
Thanks very much for the advice - cheers Amanda
I too have a CS6 master collection license and after syncing some settings with a CC subscription for a company I work for all my CS6 licenses ask me to license the software or start a trial. I feel really let down because Adobe already caused a 2 month down time for me in the past trying to figure out that Windows Sleep was the cause of a nagging registration screen constantly. The copy protection placed on the CS6 suite was horrendous I would have rather had credit toward CC after all the trouble I've had with the nagging trial screens in CS6 Master Collection.
What can be done to fix this nag screen, currently I have to enter in my license every time I open a tool.