vba - Application.Quit command not closing the entire Excel Application

Question

I have following code under a button. When clicked it just closes the current Excel sheet but not the entire Excel application.

Application.DisplayAlerts = False
ThisWorkbook.Save
Application.DisplayAlerts = True
Application.Quit

Note: I don't have any other sheets open.

The following window still appears.

Answer 1

I had this issue and I resolved it by putting in the Workbook_BeforeClose():

ThisWorkbook.saved = true