The error Exit Code 15 occurs when you install a Creative Suite 6 or Creative Cloud product. Alternately, the installer user interface doesn't appear when you click Install.
Adobe is investigating this issue. Apparently, some computers don't allocate the resources to launch the installation process, causing the error.
Note: Safe Boot only appears on the startup screen; it does not appear in the corners of the desktop the way it does in Windows.
- Restart the Macintosh. Press and hold the Shift key immediately after you hear the startup tone.
- Release the Shift key when the Apple logo appears. Safe Boot appears on the Mac OS X startup screen.
Contact Adobe Support for additional assistance with this issue if the steps above did not work.