To install the "add-on" for Microsoft Word, click on "Tools" and then "Add-ons."

Click "Enable" to enable the Add-on for either Word for Mac or PC.

1)    With your cursor, click where you want your citation to appear in the document.

2)    Select “Zotero” tab in MS Word.        
3)    Click “Add/Edit Citation.”

4)    Search for your citation and select it.

5)    Hit "Enter."

6)    Set preferences for your document’s citation style.

7)    Click “Add/Edit Bibliography.”

8)    Bibliography in your chosen style will be added to the END of your document.