I have prepared a word document and a corresponding YouTube Video on Captions in Zoom. Please be sure you have the most recent word doc, as I date it (see footer) each time I update.

You will need the link to access this video. You may share the link and document to whomever you wish. 

Activating Closed Captions

(includes update zoom; settings; new meeting to test captions)
Video on Zoom's Closed Captions

--