Set form to full screen (not full "excel frame")

[PARSA]

HELLO,
THIS COD SET A FORM TO FULL OF "EXCEL FRAME":

Private Sub UserForm_Activate()With Application
    Me.Top = .Top
    Me.Left = .Left
    Me.Height = .Height
    Me.Width = .Width
End With
End Sub

BUT I WANT TO SET IT TO "FULL SCREEN" (FIT TO SCREEN)
WHAT CAN I DO?