why am i unable to update my endnote bibliography

To review, the general process of inserting citations is: In the Word document, place the cursor where the reference(s) should be inserted, then select Insert Selected Citation(s) from the menu/ribbon.(You can also use the Find Citation(s) option in the EN submenu/ribbon). Within the database, select the reference(s) to be cited and return to Word.Once EndNote is the active window, open the library of interest (if it is not already open). When ready to cite a reference in a manuscript, go to the EN toolbar in Word and select Go to EndNote.Close the EndNote Styles window, then select the desired style from the output styles drop-down menu.

Note: Styles may also be downloaded from For information on creating new styles and editing existing ones, see Creating new styles or the use the Help feature within EndNote). (Use the Style Info/Preview feature to find information about the style and to see samples of citations formatted in the highlighted style. If the desired style is not available in the list, click on Open Style Manager… and select the output styles to be included in the Output styles submenu by clicking in the box to left of the style name. Select the desired output style in EN by going to the Output styles option on the Edit menu.Before citing references in a manuscript:

Why am i unable to update my endnote bibliography