Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Where's my product key?
When your Office purchase or offer is included with your new PC, an Office product key is transmitted digitally to your PC when you activate Windows. You don't need or receive a printed product key. To reinstall Office or manage your Office 365 subscription, you'll use your Microsoft account to log in to your Microsoft account, Services & subscriptions page.