If you do not already have a 'Section Break' between these two sections of your document, you will need to add one. One of the required page numbering changes for your thesis or dissertation is that you need to use Roman numerals (e.g., 'i, ii, iii') for your introductory sections (Abstract, Table of Contents), and then switch to Arabic numerals (e.g., '1, 2, 3') and begin the page numbering at '1' at the start of Chapter I of your main text. To start, temporarily turn on the viewing of hidden formatting symbols by clicking the 'Show/Hide' symbol on the 'Home' tab in the 'Paragraph' box - this will enable you to see the Section Breaks between sections of your document. To use different page numbering schemes in different sections of your Word document, there are two tricks: 1) you must include a 'Section Break - Next page' between each section of your document where the numbering will change, and 2) you must 'unlink' each section's footer from the one before it.
See Also: How do I add page numbers in Microsoft Word?