Does Adobe have an uninstall program for Adobe Reader? (I've had some bad results lately using Microsoft Windows add/remove programs routine).
You may want to try running this fix from Microsoft and uninstall all traces of any versions of Reader:
http://support.microsoft.com/mats/Program_Install_and_Uninstall
If you want to reinstall Reader, download its full installer from
http://get.adobe.com/reader/enterprise/
After downloading, restart your computer and run the installer before doing anything else.
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