When you download Endnote Desktop, the Cite While You Write plugin should automatically download and be installed in Word. If you're using Endnote Basic (which only gives you access to Endnote Online), you can download the plugin separately. You'll find it under Format in your Endnote Basic account.
For instructions on how to install the plugin in Windows, see EndNote's Cite While You Write Windows installation instructions.
For instructions on how to install the plugin on a Mac, see EndNote's Cite While You Write Macintosh installation instructions.
If you have the full version of Endnote (including Endnote Desktop), the plugin will be automatically downloaded and installed on your computer along with the Desktop program. If you have Endnote Basic, you'll have to download the plugin separately.
To download Cite While You Write, click on Downloads. You will see links to download plugins for Windows and Macintosh. Select the correct link for your computer and follow the directions to install.

Once you have installed either Endnote Desktop or the Cite While You Write plugin, you should be able to open Word and see an Endnote tab like the one below (or an Endnote menu if you have a Mac).

To see more on how to use the Cite While You Write plugin, see our Endnote X7 guide.
This video demonstrates the basic functions of EndNote's Cite While You Write plugin on Word.
To learn more about the basic functions of Cite While You Write, EndNote has instructions for:
To learn more about the other functions of Cite While You Write, see the EndNote Online Help page.