If you are working on a particularly large Word document (such as a dissertation or thesis) then Word can become slow when inserting/editing EndNote citations.

To speed up the process of working with the two programs together you can try unformatting your citations whilst you work, and then later reformatting them in a batch.

You can do this by following these instructions. 

Unformatting

• unformatting citations (in 'Word' > 'EndNote' tab > 'Convert Citations and Bibliography' > 'Convert to Unformatted Citations')
• turning 'Instant Formatting' off (in 'Word' > 'EndNote' tab > 'Instant Formatting is off')

EndNote citations will be unformatted (in temporary delimiters such as {author#number}) and no reference list will appear.

New EndNote citations will be inserted in this unformatted state but will insert much more quickly as there is less demand on the computer.

Reformatting

When you have finished work on a document or section, you can reformat your citations:

• ensure you have your EndNote library open and the correct style chosen in Word
• click on 'Update Citations and Bibliography'

Your in-text citations will be reformatted and your reference list will appear at the end of your document.