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Windows 设备上的用户帐户名称显示已登录 Microsoft 帐户或工作/学校帐户的名称。 若要更改登录的用户，请选择任务栏上的 ...

Learn how to join a Microsoft Teams meeting by link, calendar, channel, chat, or by calling in.

Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。

Keeping leading zeros and large numbers in Excel. Use a custom format to keep the leading zeros. If you want to resolve the issue just within the workbook because it's not used by other programs as a data source, you can use a custom or a special format to keep the leading zeros.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

This article shows you how to use the Fn key and the F lock key.

Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.

See how Xbox cloud gaming works on iOS mobile devices.

Learn how to add a custom domain name to your Microsoft 365 subscription with this support guide from Microsoft.