This is more likely to occur for Windows machines. If this does not solve the problem it is likely that the software has not been installed completely or correctly. If neither of the above apply, try exiting and re-starting Endnote and if that does not work try re-booting your computer.Uninstall the software and download it again after registering and receiving confirmation of your registration. If you have not registered or have not yet received the email to confirm your registration the product key will not be downloaded with the software. When downloading the software you need to register first.If you have downloaded it from a location other than JCU, uninstall the software and download it from this link.If you cannot locate it go to the EndNote application folder on your computer and click on EndNote.exe. This will probably be at This PC > C: > Program Files (x86) > EndNote 20 > EndNote.exeĮndNote should not ask for a product key if it is installed correctly using the download link on this page. You should now be able to find EndNote in the Start>Programs menu.A black command window will open leave the window open as it will close automatically when the software is fully installed.In your Downloads folder double click on Endnote20.exe and say yes when prompted if you want to install the software.Agree to the conditions and then choose the operating system Windows and version 20 and click download. Once registration is confirmed click on Download in the left menu.