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Training: Add and record audio, such as music, narration, or sound bites, to your PowerPoint presentation and select the playback options. Watch this video to learn how.

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Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

Outlook 数据文件包含计算机上的电子邮件、日历、任务和其他项目。

笔帽中还有两枚纽扣电池，可能需要更换。 更换笔帽中的电池. 如果你的触控笔为有两个侧边按钮的 Surface 触控笔，则可能还需要更换笔帽中的纽扣蓝牙电池。

了解如何管理 Microsoft 帐户安全信息和排查验证码问题。

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