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

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You can change the format of a message when you reply to it or forward it. If someone sends you a plain text message, for example, you can reply to that message or forward it by using HTML or Rich Text Format.

激活有助于验证你的 Windows 副本是否为正版，且未在超过 Microsoft 软件许可条款所允许数量的设备上使用。 本文将帮助你找出并改正 Windows 中常见的激活错误。

How to change your Outlook signature or add a signature. Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date.

See an alert in a pop-up window on the bottom of Windows desktop when new email messages arrive in your Outlook Inbox.

Get more information about managing your Xbox subscriptions, issues with billing, and more.

使用文件共享、云服务或其他解决方案发送大型文件，以便在 Outlook 中解决文件大小限制。

Sort messages in Outlook by grouping them according to criteria such as date, sender, subject, attachments, or flags.

Learn how to cancel your Microsoft subscriptions such as Microsoft 365, Copilot Pro and Xbox. Troubleshoot issues if you can't cancel your subscription.