EndNote X9 running extremely slow and buggy on Windows

Hello All,

I’m having an issue where EndNote is running incredibly slowly and frequently bugs out. It’s always been a bit laggy for me, persisting across multiple libraries, two different PC’s, and all three versions X7, X8, and X9. Both PC’s are relatively high-performance; one is a 2017 gaming laptop and the other a home-built gaming desktop rig. It seems to have scaled logarithmically with my library size - at 50 references it took about a second to respond to any input, by 100 it was up to about 3 seconds, and now at 670+ it takes about five seconds for the program to respond when I click on something. Additionally, the side bar with the list of reference groups and the toolbar at the top occasionally turn into just solid white rectangles. I’ve put up with this until now, but I just tried to save a copy of my library and the program froze for about 15 minutes. I really can’t afford to have this thing crash at the wrong time and lose all of my citations.

Does anybody have any ideas as to what’s going on?

Please contact Technical Support directly

1-800-336-4474 option 4 then 1



We are here to help whenever you run into issues.