Acrobat DC when opened causes the Adobe AcroCEF file to multiply in Windows Task Manager and the CPU goes to 100%. I have a screen capture of Task Manager to show you what I'm referring to. I have to close Acrobat to make the file stop multiplying itself. Also cannot save the Binder file after trying to combine pdf files into one file. I logged out of Creative Cloud and back in again and I also uninstalled and reinstalled the program but the problem still occurs.