Mendeley Cite is the Microsoft Word add-in which allows you to automatically:
Find it at Install Mendeley Cite for Microsoft Word, and see instructions below.
Once you have installed Mendeley Cite, open a Microsoft Word document and you'll find Mendeley Cite in the References tab or under Insert > My Add ins.
Now you can easily add references to any item in your Mendeley Library.
Put the cursor in your Word document where you want to add a citation.
Then click on the tick next to the article you want to reference, as in the image at the right, and select Insert Citation.
You can click on the little pill shape to edit the reference - for example, if you have just written "Aron's ground breaking research shows that..", you'll want to include just the year (2018), rather than (Aron, 2018).
After you have added some citations to your Word document, you can use Mendeley cite to create a bibliography of all the references you've cited.
Put the cursor in your Word document where you want the Bibliography to appear.
Then select More > Insert Bibliography.
Your "bibliography" will only list items cited in your document. See FAQs - How do I create a bibliography (not a reference list) using Mendeley?
It is good practice to "flatten" your document or remove the links to Mendeley before you submit your paper for assessment or publication.
Your Mendeley references and bibliography then become ordinary plain text in Word that can be edited as necessary.
See How do I remove the Mendeley code from a document in Mendeley Cite?