I am upgrading from Acrobat X Standard to Acrobat X Pro. When trying to install Acrobat X Pro I get this mesasge - "Setup has determined that you already have a more functional product installed. Setup will now terminate." And it does terminate! What would be my problem? The only other Adobe programs I have installed are - Adobe Air; Adobe Flash Player 11 Active X; Adobe Flash Player 11 Plugin
No, I did not remove Acrobat Standard prior to installation of Adobe X Pro upgrade. Should I do that and then try to install the professional upgrade? Also, the only entries in the ad & remove programs are the ones I listed in the previous post.
Yes you should. Although if you don't have an option to uninstall in Add & Remove Programs that is going to make it much more difficult. You can try using the Acrobat Cleaner tool however located at http://labs.adobe.com/downloads/acrobatcleaner.html.
Do you use a registry cleaner or any other type of system optimization utility btw?
That is likely what has removed your entry to be able to remove Adobe Acrobat Standard through the normal install process. I would recommend always backing up your registry before using anything as invasive as a registry cleaner or system optimization utility.