MPDAEF can you please post any specific error messages which maybe causing you concern from your log files. You can find information on how to locate and interpret your Installation log files at Troubleshoot with install logs | CS5, CS5.5, CS6 - http://helpx.adobe.com/creative-suite/kb/troubleshoot-install-logs-cs5-cs5.html.
I am pasting below the error log for today's attempt to download/install AI
CC. The number and specific types of non-fatal errors changes will change
with each attempt.
I am not inclined (nor have I time) to try to troubleshoot these errors
myself and will, when I have time, call consumer support to deal with this
(and with installing latest PS CC bug fixes). Earlier this year, I spent
upwards of 24 actual hours with Adobe techs on what turned out, after
several weeks, to be an Adobe server malfunction. Adobe's customers should
not have to become Adobe (or computer) techs in order to have access and
use of programs for which we pay. If you can read this error log and
suggest a fix, I would obviously be much appreciative.
Exit Code: 6
Please see specific errors below for troubleshooting. For example,
ERROR: DF024, DF036,D ...
MPDAEF please see Error "Exit 6" or "Exit 7" | Install log | Read, write, system file errors | CS5, CS5.5 - http://helpx.adobe.com/creative-suite/kb/error-exit-6-exit-7.html for information on how to resolve your file permission issue. You will need to look further into your log files to determine the exact directories and files which have had their file permissions compromised.