it fails to open the application after downloaded.
The only way to troubleshoot this successfully is by exploring the detail.
What exactly happens? Any error messages Which dialogue box do you see? Is it Gatekeeper or something else?
SPECIAL FOR MAC USERS
-Mac 10.9.3 workaround https://forums.adobe.com/thread/1489922
-more Mac 10.9.3 https://forums.adobe.com/thread/1491469
-Enable Mac Root User https://forums.adobe.com/thread/1156604
-more Root User http://forums.adobe.com/thread/879931
-and more root user http://forums.adobe.com/thread/940869?tstart=0