Sub Bouton1_Clic()
For i = Sheets.Count To 2 Step -1
test = 0
For j = 1 To Range("D65535").End(xlUp).Row
If Sheets(i).Name = Cells(j, 4) Then test = 1
Next j
If test = 0 Then
Application.DisplayAlerts = False
Sheets(i).Delete
End If
Next i
Application.DisplayAlerts = True
End Sub