This problem seems to be caused by an interaction between Chrome and
Adobe Acrobat Reader. The old Netscape Plugin Application Programming
Interface (NPAPI) from 1995 that had security issues appears to have
been replaced by Google with PPAPI (Pepper Programming Interface).I am
running Windows 10 and version 52.0.2473.82 of Google Chrome.To fix this
problem, I did the following:1. In the Chrome address bar, type:
chrome://flags2. Scroll about 3/4 of the way down the list until you
see: Enable PP...