Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
I can't sign in to my Microsoft account - Microsoft Support
Learn how to fix problems signing into your Microsoft account. Resolve password verification, locked account, and other Microsoft account login issues.
Applies To:
Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Microsoft 365 for home, Outlook.com, GroupMe, Microsoft account dashboard, Microsoft Teams, Microsoft Teams personal, Microsoft To Do, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows, Outlook for Android, Outlook for iOS
Find your Windows product key - Microsoft Support
Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.
Applies To:
Microsoft account dashboard
Call of Duty（使命召唤） | Xbox Support
了解 Xbox X|S、Xbox One、Xbox 360 和 Windows 10 上的 Call of Duty（使命召唤）、如何购买该游戏以及从哪里可获取疑难解答帮助。.
Recovery options in Windows - Microsoft Support
Your PC isn't working well and you recently installed an app. Restore from a system restore point. You suspect your device has been infected. Use installation media to reinstall Windows 11. Select one of the recovery options below and follow the steps to try to get things working again.
Xbox 付款错误消息和代码 | Xbox Support
为何我的 Xbox 订阅付款被拒绝？. 使用 Microsoft 帐户余额进行购买. 你的 PayPal 帐户列出的国家/地区可能与支付选项的国家/地区不同。. 如果它们不匹配，则需要更新 PayPal 帐户或付款方式，或使用其他付款方式完成购买。. 若要添加另一种付款方式，请执行以下 ...
如何兑换礼品卡和代码 | Xbox Support
兑换礼品卡和充值码以进行 Xbox 购买和延长 Xbox 订阅。. 代码的长度为 25 个字符，包括数字和字母，并且采用横竖 5 个字符的 5x5 格式。. 代码可以是你从 Microsoft 或受信任的零售商处购买的数字卡或物理卡。. 请注意，如果帐户的未结余额或付款选项不再有效 ...
Ways to install Windows 11 - Microsoft Support
Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.
使用 Microsoft Rewards 赢得积分 | Xbox Support
Microsoft Rewards. 注意 若要完成 Microsoft Rewards 任务，需要拥有有效的 Xbox Game Pass 订阅。. Xbox Game Pass 任务是从 Xbox Game Pass 库玩游戏时赢得积分的绝佳方式：. 可以在主机上的 Xbox Game Pass 下和移动设备上 Xbox 应用中的档案下查找并提交每日、每周和每月任务。. 完成 ...
Windows Update Troubleshooter - Microsoft Support
If you get an error code while downloading and installing Windows updates, the Update Troubleshooter can help resolve the problem. Select Start > Settings > System > Troubleshoot > Other troubleshooters. Next, under Most frequent, select Windows Update > Run.