Once you've turned your front matter into its own section, you can subdivide it even further, in case you want nothing in the headers and footers on the cover page.
Use Word's Different First Page
setting, shown here, to do this. If you select this setting, you enable the header and footer areas to be different from the rest of the pages in the section. You can do this for any section in the document.
The section's header and footer areas will now have text above them saying "First Page Header" and "First Page Footer." (This appears only in the header and footer workspace.)
If you've already applied page numbers, the Different First Page setting will suppress the page number on the cover page.