Installation problems are covered by free support, so if that’s a practical option for you, I’d take it. Alternatively, have a look through the technical support documents on the Adobe site for some troubleshooting advice. Installation problems can be due to so many different things, it’s very hard to pin down in a forum discussion.
But… if you do want to pursue it here, when you say it doesn’t launch, can you describe what does happen – nothing at all, or it puts up the splash screen and then exits, or what?