Go to this page:

https://gregmaxey.com/word_tip_pages...menu.html#WACR

. . . . then scroll down to the Word 2013\2016 AutoCorrect Restored section and click the downloadable file link:



Once downloaded, located and decompressed, with Word closed, place the file in Word 2016 STARTUP folder.
Open Word and check the drop down menu now.