Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

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提示: 可以使用任何电话号码来请求安全代码。. 电话号码不需要与你的帐户关联。. 手机不需要是智能手机，也不需要连接互联网，只需要能够接收短信。. 你可能需要创建新密码。 阅读有关如何创建强密码的提示。. 如果看到“该 Microsoft 帐户不存在”错误消息，请使用 Microsoft 帐户登录帮助程序。

若要在 Outlook.com 中取得支援，請按一下這裡或選取功能表列上的 [說明]，然後輸入您的查詢。 如果自助無法解決問題，請向下捲動至 [仍然需要協助嗎?] 然後選取 [是]。 若要在 Outlook.com 中與我們連絡，您必須登入。

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.

从 Mojang 帐户迁移到 Microsoft 帐户的过程很复杂，你可能会遇到问题或存在疑问。 本文概述了迁移过程中的常见问题，并提供了一些解决方案。

To view your purchases, press the Xbox button to open the guide.; Go to Profile & system > Settings > Account > Payment & billing.; Select Order history to view your purchases.

Advanced email security. As a Microsoft 365 subscriber, you get enhanced security tools that help protect your inbox from phishing and malware.

Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.

Choose from a variety of Surface devices and accessories to get help.