This security update includes fixes and quality improvements that are part of the following updates: January 13, 2026—KB5073724 (OS Builds 19045.6807 and 19044.6807) January 17, 2026—KB5077796 (OS Builds 19045.6811 and 19044.6811) Out-of-band January 24, 2026—KB5078129 (OS Builds 19045.6812 and 19044.6812) Out-of-band The following is a summary of the issues that this update addresses ...

Find everything you need to manage your Microsoft account, Xbox profile, and more.

Find all release notes for the Xbox Update Preview Alpha ring here.

Learn how to set up Xbox Cloud Gaming on your Android phone or tablet. Includes steps for installing the Xbox app, using invite links, and streaming games with Game Pass Ultimate.

Applies to: Windows Server 2016 This security update includes fixes and improvements that are a part of the following update: November 11, 2025—KB5068864 (OS Build 14393.8594) The following is a summary of the issues that this update addresses. The bold text within the brackets indicates the item or area of the change we are documenting. [PowerShell 5.1] The Invoke-WebRequest command now ...

Describes how to deploy the Microsoft Windows Malicious Software Removal Tool (MSRT) in an enterprise environment.

了解如何離線更新您的 Xbox 主機。

Xbox Support ... Xbox Support

通过安装 Microsoft Defender，保护 Android、iPhone、Mac 和 Windows 设备免受威胁。 通过以下方式在设备上下载Microsoft Defender： 扫描以下 QR 码 在应用商店中搜索Microsoft Defender 与设备共享，链接如下： 复制链接 我们建议在每人至少五台设备上安装Microsoft Defender。 准备好了尝试一下吗？

我以前使用过手机连接 ，现在我的设备未连接或无法重新连接 如果像以前一样在重新连接设备时遇到问题，请执行以下步骤来解决此问题： 在 Android 设备上： 确保应用已更新到最新版本。 在移动设备上打开 连接至 Windows 。 在“关联帐户”下单击Microsoft 帐户名称。 转到 “帐户设置” > 注销和 ...