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

Xbox Support ... Xbox Support

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

Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.

iOS Android To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store.

Learn how to add all your different accounts to the Microsoft Authenticator app.

Microsoft SwiftKey在 iPhone 和 iPad 上均可用，且在运行 iOS 版本 12 及更高版本的所有设备上均受支持。 iPad 用户可以受益于专为大型设备定制的全新扩展布局。

Microsoft 支持可帮助你处理 Microsoft 产品的问题。 查找有关 Microsoft Copilot、Microsoft 365、Windows 11、Surface 等的操作方法文章、视频和培训。