Use a normal footer on your first page to start, even if that page is your title page or lists your contents. It will default to page 1, of course.
Now, put your cursor at the end of your last non-numbered page, let's say the table of contents. DO NOT put it at the beginning of Chapter 1 or you will end up with a extra (and blank) page 1 after these steps.
Click on the Page Layout tab>Page Setup section>click on Breaks’ drop down arrow.
Then click Next Page.
Now, you can select the page number on the next page and change its format. Drag through the page number and right click. Select “Format Page Numbers.” In the Page Number Format window, select the “Start at:” and “1” and OK.
Now go back to your page number on the title page and/or Table of Contents and delete or change the formatting to “i, ii, iii” for those sections. (Everyone will be very impressed if you use little Roman numerals - just don't tell anyone you can't find the Roman numerals on your keyboard.)