您好 Zhang Yu,
感谢您联系 Microsoft Community。
关于您在 Windows 10 和 Windows 11 IoT LTSC 设备上安装 4 月安全更新后观察到的 Event ID 1808 问题, 根据我们的分析,请您参考以下说明:
- Event ID 1808 为信息性事件。
- 该事件表明系统已经成功应用所需的新 Secure Boot 证书(2023 CA),并已相应更新启动管理器。
关于您的 ASUS H81M‑K 主板:
较旧的硬件平台可能存在固件方面的限制,因此无法完全支持新的 Secure Boot 证书更新流程中的所有功能。
- 但在以下情况下:
- 系统可以正常启动,并且
- 未出现关键错误(例如 Event ID 1801, 1802 或 1803),
目前阶段,无需您执行进一步操作。
请注意,尽管系统仍可正常使用,但对于无法完全支持最新固件更新的旧平台,在未来的 Secure Boot 功能增强方面可能会存在一定限制。这属于由于硬件设计所带来的预期行为。
如果您后续发现其他与更新失败相关的事件,或遇到任何异常系统行为,欢迎随时与我们联系,我们将非常乐意继续为您提供支持。
如果本回复解决了您的问题,欢迎您标记为答案。
Ivy Bui
Hello Zhang Yu,
Thank you for contacting Microsoft Community.
Regarding the Event ID 1808 observed after installing the April security updates on your Windows 10 and Windows 11 IoT LTSC devices.
Based on our analysis, please kindly note the following:
- Event ID 1808 is an informational event.
- This event confirms that the system has applied the required new Secure Boot certificates (2023 CA) and updated the boot manager accordingly.
Regarding your ASUS H81M‑K motherboard:
Older hardware platforms may have firmware limitations and may not fully support all aspects of the newer Secure Boot certificate update process.
- However, as long as:
- the system is able to boot normally, and
- no critical errors (such as Event ID 1801, 1802 or 1803) are observed,
At this stage, no further action is required from your side.
Please note that while the system remains fully functional, older platforms that cannot fully adopt the latest firmware updates may have limited support for future Secure Boot enhancements. This is expected behavior due to hardware design constraints.
If you encounter any additional events indicating update failures or experience unexpected system behavior, please feel free to let us know and we will be happy to assist further.
If this answer could solve the issue, it's appreciated to accept the answer.
Ivy Bui