Support for Windows 10, Office 2016 and Office 2019 has ended on October 14, 2025. Learn more about your options for Windows 10 or for Office.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Learn how to cancel Xbox subscriptions, manage recurring billing, and stop future charges while retaining benefits until the subscription expires.

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。

Microsoft 帐户帮助和支持 获取有关登录、锁定或账户盗用、链接帐户、关闭、重新打开，以及更新安全信息和帐户配置文件的帮助。 获取 Microsoft 帐户计费等帮助

Need help setting up an Xbox profile or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

Find out how to manage your Xbox subscriptions to request a refund or cancel a recurring payment.

This page provides support links for home users and support phone numbers for business users.

更新 Microsoft 帐户的安全信息 注意 如果在最近 30 天内您已经删除并且替换了您的安全信息，则必须等待这个 30 天的时段过去，然后才能再次执行删除和替换操作。如果攻击者获取了您的密码，那么这个等待期有助于保护您的帐户。