To change page headers from one page to the next:

  • First insert a section break instead of a page break. (“Page Layout” tab of the Ribbon, look in the “Page Setup” panel. Select “Breaks”.)
  • Then double-click in the header to open the header.
  • Then select the Design tab in the Ribbon.
  • Then toggle “Link to Previous” to make headers independent/same-as-previous.