I would double-check to ensure the apps were not already installed by checking in the Applications folder (Mac) or Start Menu (Windows)
For Acrobat is has to be installed through the Adobe Application Manager and the trial version has to be removed with the uninstaller
Uninstall Acrobat X in Mac OS®
In Applications > Utilities > Adobe Installers, select the Acrobat X Uninstaller and double-click it.
Follow the onscreen instructions to uninstall Acrobat.
In the Authenticate dialog box, type the user name and password for an administrator account and click OK.
Note: The uninstaller removes only Adobe Acrobat X files from the system. It does not remove Adobe Reader files, Acrobat user data, or files that are shared with other Adobe applications.
(Optional) Move any Adobe PDF Settings files that you created from the Library/Application Support/Adobe PDF folder and drag the folder to the Trash.
Uninstall Acrobat X in Windows®
Open Control Panel > Programs and Features (Vista/Win 7) or Add/Remove Programs (XP)
Find the entry for Acrobat X, select it
Click Uninstall and follow the on screen instructions
I would double-check that it got removed after running the uninstaller in Applications folder (Mac) or list of installed software (Windows)
The solution of david will normally resolve the problem,if not:
-Try to delete the cache.db file in this place : HD\Library\Application support\Adobe\Adobe PCD\Cache\cache.db ,you must reactivate your subscription after that.
-The other way is to install it in another language,you can change the language from you application manager preferences.If you have french version try to choose "canadian french" or if you have english version try to choose europeen english.This manipulation will reactivate all products downloads.