了解如何更改 Windows 中显示器的刷新率，以确定在屏幕上显示运动的平滑程度。

Découvrez comment naviguer dans Windows à l’aide des raccourcis clavier. Explorez la liste complète de la barre des tâches, de l’invite de commandes et des raccourcis généraux de Windows.

Get help with problems using the Xbox app for mobile.

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

Summary. This security update makes improvements to Secure Boot DBX for the supported Windows versions listed in the "Applies to" section. Key changes include the following:

Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Use the Xbox mobile app, the Xbox Game Pass app, or the Microsoft Store on PC to remotely install games—so your games are ready when you are.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Training: Get up and running quickly on Skype for Business with this Quick Start.

Kontaktieren Sie den Microsoft-Support. Suchen Sie nach Lösungen für häufige Probleme, oder erhalten Sie Hilfe von einem Supportmitarbeiter.