Re: Installation fails when I try to install CC 2014 apps. Exit Code: 7. 0 Fatal errors, 0 errors. Only happens with apps that I have CS6 versions already installed.

Lori without the exact error of where you are facing the file permission failure I would not want to speculate.  I would recommend contacting our support team at Creative Cloud membership support for direct assistance reviewing your log files and locating the file permission error.