A family of Microsoft word processing software products for creating web, email, and print documents.
What printer is set as your default? If you have not selected a printer as the default, that could be the issue. If you don't have a physical printer connected, you can select Microsoft Print to PDF. Often when there are problems with any of the dialogs related to layout (Page Setup, Style, Symbol, Font, Paragraph, etc.), this is due to Word not being able to see a printer driver. It's usually advisable to install the printer driver locally even if the printer is on a network.