Hi cbcenterplus, You should find the Updater option in bottom of the list in the Preferences screen. Please refer to the picture below for the updater option. If you are not finding the option then you may consider reinstalling the Adobe Reader from the link below.  [URL] [IMAGE] Please let me know if this helps.
I recently downloadewd the latest Adobe Reader update. It stated that new updates will be installed automatically but that there are options to change that. One of the options that was indicated was that it could "Notify me,but let me choose when to download and install updates".  That is the option I want.  It stated I could change the option in the preference settings under Updater(choose Edit>Preferences). But I can't find Updater anywhere in Adobe Reader to change the option.  How do I find Updater to change the Preference settings in Adobe Reader?
Adobe Reader Updates