You can use the LockNavigationPane macro action in Access desktop databases to prevent users from deleting database objects that are displayed in the Navigation Pane.
Note: The LockNavigationPane macro action isn't available in Access web apps.
The LockNavigationPane macro action has the following argument.
Select Yes to lock the Navigation Pane, or No to unlock the Navigation Pane.
Locking the Navigation Pane prevents you from deleting database objects or cutting database objects to the clipboard. It does not prevent you from performing any of the following operations:
Copying database objects to the clipboard
Pasting database objects from the clipboard
Displaying or hiding the Navigation Pane
Selecting different Navigation Pane organization schemes
Showing or hiding sections of the Navigation Pane
To run the LockNavigationPane action in a VBA module, use the LockNavigationPane method of the DoCmd object.