Adobe Acrobat DC generates PDF from Microsoft Word correctly, but freezes during opening of the PDF

I use Windows 10 Pro, Office 365 and Adobe Acrobat Pro DC.  When I make a PDF while I'm in the Microsoft Word application, everything works fine: a correct PDF is made (Step 1) and Adobe PDF DC opens to show the result (Step 2).

However, when I use Adobe Acrobat DC to make the PDF, Step 1 is carried out correctly (a correct PDF is generated) but the software freezes during Step 2, leaving the message "Please wait while the document is being prepared".  After that I really have to "kill" Adobe Acrobat DC to proceed working with it.  Any idea how to solve this?  I like to be able to work with the Adobe Acrobat DC application (instead of generating the PDF directly from an Office application) in order to be able to combine multiple (Office) files into one PDF, otherwise the failure of the Acrobat application this would not be a problem to me.

The PC is a very recent and clean setup.