Your comments

Thank you for letting me know. I will be extra careful when updating Adobe in the future. In the mean time, I do want to say that I appreciate the ability to use UnChecky and thank you for creating it.
Yes, that is the checkbox I am speaking of.
I didn't say it was a website. I said I had downloaded an update for Adobe and was installing it when Unchecky failed to uncheck the McAfee box.