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

If you see error E106 when you try to turn on your Xbox console, this means there may have been a problem installing a system update. Find more solutions here.

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。

Need help setting up an Xbox profile or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

Learn how to set up screen time limits for Xbox and Windows devices that members in your Xbox family group are using.

Learn about error X:5829.0, B:1884.0 and 5829 and what to do if you see them while trying to play an original Xbox game.

重要提示：大多数 Windows 设备使用的安全启动证书已开始在 2026 年 6 月过期。 若未能及时更新，这可能会影响某些个人和企业设备安全启动的能力。 为避免中断，建议查看指南并提前采取措施更新证书。 有关详细信息和准备步骤，请参阅 Windows 安全启动证书过期和 CA 更新。

Learn how to fix error 0x80bd0043 on Xbox.

允许的签名数据库 (DB) 和不允许的签名数据库 (DBX) 确定哪些代码可以在 OS 启动之前在 UEFI 环境中运行。 DB 包括由 Microsoft 和 OEM 管理的证书，而 DBX 由Microsoft使用最新的吊销进行更新。 任何具有 KEK 的实体都可以更新 DB 和 DBX。

If your Xbox console is lost or stolen, there are several steps you’ll want to take to secure your account and report your lost console.