Sign in using Microsoft Authenticator - Microsoft Support
Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.
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Signing in on multiple devices at the same time | Xbox Support
Find out how signing in to multiple Xbox and Windows devices can affect your account.
Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
About Microsoft Authenticator - Microsoft Support
Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.
Contact - Microsoft Support
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.
我的数字代码或礼品卡不起作用 | Xbox Support
如果我的代码来自其他区域,该怎么办? 某些数字代码适用于可能与帐户上的区域设置不匹配的特定国家/地区。 如果你的帐户与你的物理区域匹配,并且你的代码是从你所在地区的零售商处购买的,请确保设备上的区域也与你的物理位置匹配。 若要从 Xbox 主机执行此作,请执行以下作:
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管理 Xbox 線上安全和隱私權設定 | Xbox Support
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