您好！
请尝试在Microsoft Update Catalog中下载并手动安装： https://www.catalog.update.microsoft.com/Search.aspx?q=KB4012212
此外，关于这个报错，以下文档应该对您有所帮助：
"The update is not applicable to your computer" error when you install Windows updates
https://support.microsoft.com/zh-cn/help/3057448/-the-update-is-not-applicable-to-your-computer-error-when-you-install-windows-updates
此外也可以参考以下Blog中的排错步骤：
Update is not applicable to your computer- but it is https://blogs.technet.microsoft.com/silvana/2014/10/22/update-is-not-applicable-to-your-computer-but-it-is/
此致，
Alvin Wang
Please remember to mark the replies as answers if they help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.
请问以上信息对您是否有所帮助？
