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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:

Microsoft Edge で拡張機能を追加、オフ、または削除する方法について説明します。

Learn how to sign in, sign out, lock, and switch user account in Windows.

本页可帮助你了解如何使用 Microsoft 繁体中文输入法，包括输入法功能和键盘快捷方式。

Learn how to change the size of the Start menu in Windows to show more of your apps, and even make it full-screen.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

作为 Microsoft Teams 中的会议组织者，了解如何创建分组讨论室，将参与者引入小组，进行对话交流和集思广益。

Learn how to change your gamerpic, including how to upload a customized image for your profile from your Xbox console.

可以通过多种方法关闭电脑：完全关闭电脑、使电脑进入睡眠状态或使电脑进入休眠状态。