There may be compatibility issues between Endnote X6 and Windows 10. According to a knowledge base article _ http://endnote.com/kb/107713 _: “We are testing EndNote X6 with Windows 10 to determine informal compatibility and will report any exceptions found on this page. Customers are encouraged to report any issues discovered to Technical Support. We do not anticipate updating EndNote X6 and prior for Windows 10 compatibility.”
Technical support
For help using EndNote
Monday – Friday, 9 a.m. – 8 p.m. Eastern (GMT -5)
+1-800-336-4474, press 4