Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

Download and install or reinstall Office 2021, Office 2019, or Office 2016. Important: Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended …

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Before installing Project the first time, sign in with an existing or new Microsoft Account and enter your product key* at microsoft365.com/setup. Redeeming your key links your account with the Project app …

Find out how to get support for Microsoft apps and services.

Microsoft 365 is a subscription service that makes sure you always have the most up-to-date modern productivity tools from Microsoft. There are Microsoft 365 plans for home and personal use, as well …

Get tablet-to-laptop flexibility in one powerful PC. With AI-accelerated Copilot+ PC experiences and all-day battery life, Surface Pro is built to keep you on the go. Explore the newest Surface devices. …

Surface Pro Keyboard and Surface Type Cover are accessories that turn your device into a laptop. You can draw, take notes, and make your device more comfortable to use.

Find information about Microsoft 365 and Office suites including system requirements for each version.

On the PC you’re projecting from, select Windows logo key + K and select the PC you’d like to connect to. Or you can search for Cast in the Windows Search bar, then select Connect to a wireless display. …

App publishers sometimes update their apps to add new features and fix problems. Microsoft Store on Windows can automatically install app updates. Select Start , then search for and select Microsoft …