On Installing the Creative Cloud the file association of the computer got changed becuase of which you are facing these issues.
There will be no entry as of Creative Cloud, the product will be listed ex:- Illustrator CS6 , InDesign CS6 etc
Follow the below given step to uninstall :-
1) Go to Control Panel-->Add/Remove Programs
2) Select the CS6 product
3) Click on "Uninstall"