EndNote with No Hyperlink

When I am using EndNote for microsoft word, it does not have any hyperlink. Moreover, Undo does not work for it. Any ideas?

I am not sure what you are asking?  – undo doesn’t work for what?  Are you saying after jumping to the reference in the hyperlink, you can’t get back to the text where you started?  

Word is rather obtuse on that, but I find ALT+the keyboard back arrow jumps back to the original hyperlinked citation.  

see https://cybertext.wordpress.com/2014/03/17/word-jump-back-to-a-link/  and if you want to add it to your toolbar see https://cybertext.wordpress.com/2010/04/21/word-add-a-back-button-to-the-toolbar/

Are you saying you don’t have hyperlinks for citation to references, but you want them?  That is a setting in the bibliography menu.  See image attached for the place in Word 2013 and 2010.