How to delete a database?
Close the program if it is opened and launch it again. If you are connected to the database at the moment, then you will not be able to delete it, so you need to close the program if it is opened and launch it again.
Then in the window "Select Database" click "Delete"
When clicking "Delete", the database file is not deleted from your computer. Only the record in the database selection list is deleted. To delete a database file, use the standard Windows explorer or any other method convenient for you.