How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

If you see a yellow or red banner in an Office app that says SUBSCRIPTION EXPIRED, you must renew your Microsoft 365 subscription to keep using Office. For help, see Renew Microsoft 365 for home.

Learn how to change the email address or phone number that’s associated with your Microsoft account.

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Microsoft正在对永久许可证的激活体验进行现代化改造。 从 2025 年 12 月 3 日起，传统的基于电话的产品激活自动化过程已从电话转移到在线。 客户将改用产品激活门户： 产品激活门户 新的数字工作流提供更安全、更可靠且用户友好的激活体验，并有助于防止欺诈。 虽然该过程已更新，但脱机激活 ...

从Microsoft帐户中删除现有别名 警告 删除连接到Microsoft域 (（如 @Outlook.com、@Live.com 或 @Hotmail.com) ）的电子邮件别名时，该电子邮件将从我们的系统完全删除，不能用于发送或接收电子邮件。 它不能再次用作另一个帐户的别名。 Microsoft不会回收电子邮件地址，因此将来无法回收电子邮件地址。

Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing ...

已过保修期服务费用 如果你的 Xbox 主机或配件不再符合标准有限保修的资格，则可能有资格享受免费保修服务。下表按设备类型概述已过保修期的服务费用。超出保修期的收费包括适用的税费（加拿大、印度和美国除外）。

An authenticator app like Microsoft Authenticator that can provide easier verification, and also allows you to sign in even if the verification device is offline.

Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.