Xbox Support 为 Xbox、Game Pass 和账单问题提供帮助。在 Xbox Support 社区中获取建议和客户服务。

Microsoft Authenticator backs up your account credentials and related app settings, such as the order of your accounts, to the cloud. You can then use the app to recover your information on a new device, potentially avoiding getting locked out or having to recreate accounts.

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 tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

This article lists the multimedia file types that are supported by different versions of Windows Media Player.

Summary. The Distributed Component Object Model (DCOM) Remote Protocol is a protocol for exposing application objects using remote procedure calls (RPCs).DCOM is used for communication between the software components of networked devices. Hardening changes in DCOM were required for CVE-2021-26414.Therefore, we recommended that you verify if client or server applications in your environment ...

Learn how to designate an Xbox console as your home Xbox so you can share content with anyone else who signs in on your console.

A list of devices supported with Link to Windows and other features in the Phone Link app.

Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.

Learn more about updates for Windows 10 version 1903, including improvement and fixes, any known issues, and how to get the update.