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。

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Descubre cómo enviar una solicitud para obtener el reembolso de una compra de contenido digital de Xbox.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

Learn how to extend your PC's battery life using battery saver and other power-saving tips for Windows.

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

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.