To create your EndNote library:
IMPORTANT: Never store your EndNote library in cloud-syncing folders such as Dropbox, OneDrive, iCloud, Box, etc. This is because syncing folders will corrupt EndNote libraries over time.
Note for Mac users: On opening EndNote 20 for the first time, it may appear that the software has not opened. Use the menu at the top of the screen after opening EndNote to Open Library (your existing library) or create a New library:
The videos below show you how to create a new EndNote library in Windows and macOS.
EndNote 20 (Windows) library creation (0:56)
How to use EndNote 20 in seven minutes: macOS
"How to create an EndNote library" (0:47)
This video will play only the relevant section. To watch it again, refresh your browser (If you just click replay, the entire video will start from the beginning and go right through).