Edit the header by selecting the Different First Page option, and then close the Header & Footer Tools in word
To edit the header with the Different First Page option selected and close the Header & Footer Tools in Word, follow these steps:
1. Double-click on the top of the first page to open the header and activate the Header & Footer Tools tab.
2. In the Design tab that appears, check the box next to "Different First Page" in the Options group under Header & Footer Tools.
3. Make any desired changes to the header on the first page.
4. Double-click on the top of the second page to continue editing the header for the rest of the document.
5. Once you are finished editing the header, simply click on the Close Header and Footer button in the Header & Footer Tools tab to close the header and footer editing tools.
Your header with the Different First Page option selected will now be applied to the document.