最近在做一个简单的项目:windows server 2016 DC部署，遇到了个问题，重置某用户密码的时候报错了，错误如下：
找了好久，终于找到了链接，链接见下：
https://support.microsoft.com/en-us/help/4034661/windows-10-update-kb4034661
此KB修复的问题中有一条，如下：
Addressed issue where a computer account loses its domain membership with the error 1789, “The trust relationship between this workstation and the primary domain failed.” The same problem happens internally when a user password cannot be changed with error 0xc0000206, “The size of the buffer is invalid for the specified operation.”
通过以下链接下载KB:
http://www.catalog.update.microsoft.com/Search.aspx?q=KB4034661
下载后，在win server 2016 DC上安装
完成后问题解决。
本文转自ljb_job 51CTO博客，原文链接：http://blog.51cto.com/liujb/1975031，如需转载请自行联系原作者
