Could you tell me someone why just every second sheet is deleted, however if I turn off the worksheets.delete line than in the message box appears all the sheet names.
Delete the sheet in reverse. Every time you delete a sheet, the Sheet index gets shifted.
Sub tor()
Dim wsz As Integer, i as Long
wsz = ThisWorkbook.Worksheets.Count
Application.DisplayAlerts = False
For i = wsz To 2 Step -1
ThisWorkbook.Worksheets(i).Delete
Next i
Application.DisplayAlerts = True
End Sub