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.

And with Microsoft 365 Family or Microsoft 365 Premium, you can share your subscription with up to five other people, install Microsoft 365 on all your devices, and sign in to five at the same …

Before you begin, make sure your PC or Mac meets the system requirements. If you already redeemed a product key, reinstalling the apps, or you have an assigned license through work …

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 …

Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.

These steps apply only to Office Professional Plus, Visio Professional, or Project Professional. Step 1: Start an Office app, like Word, Project, or Visio, depending on your purchase. Step 2: …

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 …

If Windows won't start or isn't responding, you can use a USB recovery drive to access recovery tools and solve problems. Your Surface comes with Windows recovery info that allows you to …

For all Surface models Before you start, make sure you don’t have any other USB devices connected to your Surface, including USB mouse devices, keyboards, or other storage drives. …

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

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 …