As a professional company of this size, having a pre-selected download of McAfee antivirus when performing a standard flash update is a very aggressive manipulation of what should be a fairly effortless process. Have the option there, fine, but don't pre-select it. There are certain to be thousands of users not needing the software nor wanting it installed, that might stumble into an installation and waste time trying to prevent an install, or worse confused at just what exactly is being installed and the complications that will arise.
What's really horrible about this is that it's already done, this is already happening to many users right now who are downloading the newest flash update. This kind of aggressive user manipulation is going too far. Adobe is better than this, I expect a much more professional experience from this company.
You need to seriously consider the consequences of utilizing aggressive persuasive technology like this. It might seem like an innocuous pre-selected option box, but if the user doesn't notice the box or what they're unintentionally signing up for, you've got a serious usability issue on your hands.
There are far better, less aggressive solutions to elicit downloads. And you can't tell me that Adobe isn't making enough money already on their very expensive suite of tools, to warrant whatever kind of payoff McAffee is offering.
I hope this message somehow finds its way to the Adobe UX/UI department, and that you guys think more carefully about the kind of reputation you're earning for Adobe with decisions like this.
I booted up my puter moments ago to see the update and was furious to see just what you described. This was a move among the highest order of douchebaggery. I rarely post in any forum, however I was moved to create a new topic on this very matter when I saw this thread.
I'm Happy to see that someone beat me to the punch and was much more professional and eloquent than I intended.