When you first time open Access database there are few options that has to be set up in order to work properly. Options that you need to change are related to the way database is showing, they are set up in Microsoft Access and will not affect other databases you are using.
To set up the database please follow the instructions (as shown in video above):
1. Open database
2. File> Access Options> Current Database:
Choose Display Form: Navigation Form
Disable Use Access Special Keys
Disable Display Navigation Pane
Disable Allow Full Menus
Disable Allow Default Shortcut Menu
That is it. Your database will now open in separate window.