Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

After you've selected it, you'll see the available links for that type of Surface device model. Select the link for your model to get the latest firmware and drivers for sound, display, ethernet, and Wi-Fi.

The Xbox app for Windows is where you can go to play and manage PC gaming content on your Windows device. Whether you’re an Xbox Game Pass or a PC Game Pass member, or you’ve bought titles from the Microsoft Store, your games await in the app.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Most software that you buy directly from Microsoft, like Office, Windows, and Xbox games, comes as a digital download that you can download, install, or reinstall. After you purchase software, the download will be shown in your Order history.

Most of the advanced display settings from previous versions of Windows are now available on the Display settings page. Select Start > Settings > System > Display. If you want to change the size of your text and apps, choose an option from the drop-down menu next to Scale.

Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.