I recently tried to update my Adobe Reader to version 9.1.3. My computer told me I needed to restart for the updates to be completed. I did so, but then the same pop-up came up again, the need to restart. Now, whenever I totally restart/shut off my computer, then turn it on again, the same pop-up comes up, telling me to restart it! I mean, under my Programs list, Adobe Reader is listed as being updated to the 9.1.3 version, so I'm not sure why the pop up keeps coming up! I can live with this quirk, it's not a big deal, just curious as to why it's happening!
I am assuming you are on Windows.
I have not seen a need to restart after the 9.1.3 update, so I think something is wrong on your system.
I suggest that you completely uninstall Adobe Reader, then install it again, including all updates.
Thanks, it worked!
I was running Adobe reader 8.1.3 and I kept getting the message that my computer needed to be restarted after every reboot.
The problem went away after deleting this folder:
%userprofile%\Local Settings\Application Data\Adobe\Updater5
I then went into adobe and clicked Help, Check for Updates.
It finally found version 8.1.4, updated and the message went away.