You may want to use this tool to remove all traces of previous version(s) of Reader:
Then, if you want to reinstall Reader, download the offline installer of the version you want from
After downloading, restart your computer and run the installer before doing anything else.
I would like to use SCCM/SCUP to deploy these updates to about 300 computers... And I do not want to reinstall Adobe Reader manually on all of these machines if things get messed up this way....
You might consider posting in the Acrobat/Reader Enterprise Deployment Forum to reach the right experts.
Can you let us know the OS version, architechture and language. Also what was the version/language of Reader before applying the update. I have tried updating a Reader X manually (out of SCUP environment) and it works perfectly.