By default, Microsoft Access form windows act like any other
window; users can change their size and position using the windows border
features. But if you would like to prevent users from modifying how the form
displays on the screen, follow these steps:

  1. Open
    the form in design view and press [F4].
  2. Under
    the format tab, change the value of MinMaxButtons property to None.
  3. Change
    the value of Control Box to No.
  4. Change
    the Border Style to Thin.
  5. Set
    the value of Moveable to No.

When the form is opened, the user will not be able to use
the border buttons to resize, minimize or maximize the form. With Moveable set
to No, users will not be able to click and drag the border to reposition the
window on the screen.

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