Hi jamal
It looks like you have a PopUp Form that opens at startup?
To not display this Form you would do the following:-
1. Select File from the Main Menu
2. Select Options
3. Current Database
4. Display Form - select None
You can PM me if you need further help.
Good Reading https://docs.microsoft.com/en-gb/off...on-description
For information, you are removing the startup form NOT the application interface.
The application interface comprises the navigation pane, title bar, ribbon etc...all of which can also be hidden