Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Erfahren Sie, wie Sie die App „PC-Integritätsprüfung“ verwenden, um die Leistung Ihres Geräts zu verbessern.

Learn what you can do if you're not receiving account aign-in verification codes.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.