EndNote Online enables you to use the same EndNote library from anywhere, and to work across multiple devices.
Syncing your desktop library to EndNote Online the first time:
Click on 'Enable Sync' and follow the instructions, to register for EndNote Online account.
After you have set up the EndNote Online account, and synced your original library with EndNote Online,
To sync to a second computer:
Resetting sync prepares your online library account for linking to a new desktop library.
Required for collaborative concurrent sharing with a new desktop library.
Ensure your current desktop library is up-to-date with the online library by completing a final sync (Tools drop down > Sync)
Back up (compress) your desktop library before removing the sync and emptying your online account.
Emptying an online library