Adobe pdf keeps removing from computer.

Hi everyone,

Ok I have users with adobe acrobat pro dc and I have had to repair the installation twice this week to get the adobe pdf to come back. I have looked at windows update and adobe updates and they both are have not updated when this occurs. I have this installed on like 20 users and 3 have this issue. Now i believe there is an update for adobe sitting waiting but that still should not remove the printer.  Any ideas?