Configure headers and footers for different sections of a document
Click or tap the page at the beginning of a section.
Select Layout >Breaks >Next Page.
Double-click the header or footer on the first page of the new section.
Click Link to Previous to turn it off and unlink the header or footer from the previous section.
Note:Headers and footers are linked separately. If you're using headers and footers that are different for each section, turn off linking for both header and footer.
For more on headers and footers, see Headers and footers in Word.