If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert.

Restore from a system restore point. Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Manually update Surface drivers and firmware. Manual updates are useful if you need to update an offline device, update many devices that are all the same model, or if you’re creating system images for your organization.

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从 2023 年 7 月 17 日开始：主要帐户持有者将无法再将新成员添加到其共享成员身份。. 2023 年 8 月 15 日：现有成员身份将结束，Xbox Game Pass Friends & Family 将不再可用。. 从 2023 年 8 月 15 日开始：我们将发送 Xbox Game Pass Ultimate 代码，以感谢你参与我们的预览计划 ...

Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard. You can use a Microsoft account, or a work or school account to sign into your Windows device.

Report a scam. If you feel like you’ve been the target of a technical support scam, you can help Microsoft stop cybercriminals by reporting it. Learn more about avoiding technical support scams.

Check your network connection status. Windows 11 Windows 10. Windows 11 Windows 10. Windows 11 lets you quickly check your network connection status. Select the Start button, then type settings. Select Settings > Network & internet. The status of your network connection will appear at the top.

If you're having problems with two-step verification on a personal Microsoft account, which is an account that you set up for yourself (for example, danielle@outlook.com), see Turning two-step verification on or off for your Microsoft account.