本文转自: https://blog.51cto.com/ximeng211/2112574
1.打开服务器管理器,点击“管理”选择“删除角色和功能”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
2.进入删除角色和功能向导,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
3.服务器选择AD2012,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
4.勾选AD域服务器,点击“删除功能”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
5.在“验证结果”界面点击“将此域控器降级”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
6.进入AD域服务配置向导,输入域管理员用户名及密码,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
7.勾选“继续删除”,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
8.勾选“删除DNS委派”,输入用户名及密码,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
9.输入新管理员密码,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
10.点击“降级”开始降级域控
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
11.正在降级,降级完成后会自动重启
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
12.系统重启后,打开服务器管理,点击“管理”选择删除角色和功能
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
13.进入删除角色和功能向导,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
14.选择服务器AD2012,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
15.勾选删除管理工具,点击“删除功能”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
16.去掉Active Directory域服务前的对勾,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
17.默认,点击“下一步”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
18.点击“删除”开始删除角色
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
19.删除完成,点击“关闭”
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
20.登陆到DC01上,打开Active Directory站点和服务器,删除AD2012
![blob.png](http://www.tllswa.com/wp-content/plugins/jquery-image-lazy-loading/images/grey.gif)
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