Zotero Word Add-in
How do I add the Zotero Word Add-in (Add-on) to the toolbar?
Step-by-step guide
In the Zotero application, navigate the menus to [Edit / Settings: Cite > Word Processors].
Click the "Reinstall Microsoft Word Add-in" button.
Related articles
https://www.zotero.org/support/word_processor_integration