Mostly I found/ tried to find alternative software for because I was too annoyed by all this unasked cr. Dreamweaver), Apple, Quicktime and Google updaters,etc This is also a great occasion to disable all the other update and checking services, like Java update, Java Quick starter, Macromedia licensing service (for i.e. Note that changes will only take effect after a restart. If something doesn't work as it should after disabling, simply redo and tick the boxes again one by one.
(unless of course you want it to start up when you start your PC, like I have put there my Backup software and world timer clock) Most software runs still fine when all the start-up items are disabled, as any missing components are simply loaded when you are starting the software manually.
If you sort by location and manufacturer you should be able to easily identify the items that are concerning Adobe Software. It may have inserted itself also in the 'Services' panel to start there as well.
Un-select the items that are in relation to the Acrobat update manager. In the Start menu select run, type 'msconfig', hit enter (in Win 7 enter it in the search bar) Fair enough if you have other than PDF readers that you are relying on.