The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

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Find out how to troubleshoot issues redeeming Xbox digital codes and gift cards.

Learn how to redeem prepaid codes for Xbox games, subscriptions, or downloadable content using your account.

Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Learn how to redeem a Microsoft/Xbox gift card or other code or offer on your mobile device, Windows device, or Xbox console.

Microsoft account sign-in helper If you can't sign into your Microsoft account, use the sign-in helper to identify the problem. How to use the Microsoft account sign-in helper The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If it detects a problem with your account, we'll tell you what you need to do to ...

无论你何时访问 Microsoft 帐户、更改其中的个人信息或向其添加新的联系信息，我们都会生成安全代码，并将其发送到你帐户安全信息中的电子邮件地址或手机号码。然后，系统会提示你输入此代码以确认更改。通常，很短时间就会收到该代码。

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

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