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

注意 Microsoft Authenticator 不 适用于电脑或 Mac，因为出于安全原因，验证器应用是专为智能手机设计的。 了解详细信息。 Microsoft 不再支持超过一年的 Authenticator 版本。 始终使设备保持最新。 中国用户应阅读 如何在中国下载和使用 Microsoft Authenticator。

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.

Under Share my internet connection from, choose the internet connection you want to share. Under Share over, choose how you want to share your connection—over Wi-Fi or Bluetooth. Wi-Fi is usually faster and the default. (Optional) Expand the Properties section, then select Edit and enter a new network name, password, and network band. Select Save. Turn on the Mobile hotspot toggle at the top ...

摘要 当 BitLocker 无法在 Windows 中自动解锁加密驱动器时，需要 BitLocker 恢复密钥。 这是一个 48 位数字，可让你重新获得对驱动器的访问权限。