A database is installed by default with the software, it lets you see the screen "trimmed" data, and familiarize yourself with them.
When you've learned to familiarize yourself with the software, you must delete the database instance, to do this, click the Reset button
who is located on the main menu of the application, once this cleared, button disappears and you can start to encode your actual data.
Updates later the software will not overwrite your data, in other word, the database instance is not installed if Setup detects that there is already another database.