Question
Adobe Reader DC | Internet Explorer KB4571687 | Can't print PDF file
Adobe Reader DC 2020.012.20043 | Internet Explorer KB4571687 - Cumulative Update August 2020 | Can't print PDF file from Internet Explorer
Reproduced on several Computers with the Cumulative Update
Steps to Reproduce:
- Open PDF file from Internet Explorer (File > Open > All Files > PDF File)
- Press the Printer icon - The print dialog won't open.

Workaround:
- On Internet Explorer, under "Manage Addons" select "All add-ons" or "Run Without Permission" then choose "Adobe PDF" - disable it

By doing that, Internet Explorer will start the "Open, Save, Cancel" Dialog and allow you
to Open the file and print by pressing the Printer icon
- Install different PDF Reader - like Foxit Reader - it works as intended - when pressing the Printer icon, the print dialog will start
