Most new users will begin by installing the desktop version of EndNote. Licensing for the desktop version allows up to three installations on hard drives.
For example:
EndNote Online and the iPad application do not count against this maximum.
Establishing an account for EndNote Online is highly recommended for its features.
You can establish the connection between the installed version and your EndNote Online account during initial set up, or wait until later.
If you already use the free web-based EndNote Basic, you will link the installed version to this same account. Then the fuller capabilities of EndNote Online become available.
You might consider naming your Library (and later, your Backup Folder) by starting with the word "EndNote". This makes finding files much easier, since they are alphabetized together.
Example: EndNote_MyLibrary_MyName"