...
If you don't see EndNoe Tool bar after installation, the simplest way get the tools to appear is to open EndNote, and go to the EndNote menu. Select "Customizer" from the EndNote menu. Check the box in front of the "Cite While You Write" option. Click next until the Customizer the process is finished. Open a library. Then open Word and check the Tools menu for the EndNote submenu or click View and tick EndNote
...