1] Use the Remove Header/Remove Footer feature If you want to remove the header and footer from selected pages of an active document, you can use the dedicated option provided in Word.

Learn how to insert Header or Footer, insert a page number, change the format of the page numbers or remove Header & Footer in Microsoft Word.

If you run into a conditional header or footer request that you can't handle, take a look at Word fields. They're not magic, but it kind of feels like magic when they do what you want.