Notes: If you don't see the security key option, it's possible that your organization doesn't allow you to use this option for verification. In this case, you'll need to choose another method or contact your organization's help desk for more assistance. Before you can register a security key, you must have at least one additional security verification method registered.

另请参阅 如何帮助保护 Microsoft 帐户的安全 Windows 中的密钥 需要更多帮助吗？ 无法登录？ 如果无法登录到 Microsoft 帐户，大多数问题都可以通过我们的登录助手工具来识别。 登录助手 联系支持人员 如需技术支持，请转到“ 联系 Microsoft 支持部门 ”，输入问题并选择“ 获取帮助 ”。 如果仍然需要 ...

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 23H2, see its update history page. Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.

Discover the benefits to co-authoring documents in your organization and learn about versioning, checkin/checkout, and mixed Office environments.

Note: Microsoft Project for the web will soon become Microsoft Planner. You can continue using most of the Project for the web capabilities in the new Planner once it's rolled out to your organization. Learn more about the new Planner in Frequently asked questions about Planner and Planner help & learning.

Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and ...

If you forgot your work or school password or have been locked out of your account, you can use your security info and your mobile device to reset your work or school password.

摘要 2022 年 11 月 30 日，发布了带外更新，以改进Windows 10版本 2004、20H2、21H1、21H2 和 22H2 (OOBE) 。 它为符合条件的设备提供了升级到Windows 11的选项，作为 OOBE 过程的一部分。 仅当安装了 OOBE 更新时，此更新才可用。

Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.

Lists the error codes that may be reported by Device Manager and the possible resolutions in Windows.