Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.

使用 Windows 中的“设置”应用通过蓝牙发送文件。

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.

Microsoft Editor uses enhanced proofing tools for Microsoft 365 subscribers. Identify spelling, grammar, and stylistic issues within your documents.

如果尝试登录到帐户，但收到一条消息，表示该帐户被锁定，则这是因为与该帐户关联的活动可能违反了我们的使用条款。. 如何解锁 Microsoft 帐户

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Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Active content is additional functionality in a file or program, such as macros, add-ins, or data connections. This article lists types of active content that can be blocked by settings in Trust Center and which, when present in a document, cause display of the Message Bar when you open your file.

Aprende a conectarte a una red Wi-Fi en Windows y administrar las conexiones de red actuales.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content