Operating System

Windows server 2008,
Windows Server 2008 R2,
Windows server 2003,
Windows server 2003 R2
 
Scenario

To remove the computer account from windows server 2008 domain controller using ADSI Edit.
 
Solution

ADSI Edit is a powerful utility that is part of the support tools. Once you add the support tools, ADSI Edit is available from the Start menu---Programs---Support Tools. The Windows Server 2003 version is an MMC snap-in.
 
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 With Windows Server 2008, when you view the advanced properties of an object, you will see a new Attribute Editor tab. From this tab, you can edit the settings that are available in ADSI Edit. You can perform the same tasks here that you can perform in ADSIEdit, but instead of having access to all
objects and attributes in your AD DS environment, you are limited to just the object selected. With either version, you can connect to domain controllers and view the Directory Service partitions.

Figure below shows the dialog box that appears when you choose the Connect To option from the ADSI Edit context menu.
 
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 From here, you can name the connection you are making to anything that will help you identify the naming context you are accessing. In the Connection Point text boxes, you can enter the fully qualified name of the naming context to which you are connecting, or you can choose one of the four well-known naming contexts. If you are connecting to one of the new application partitions, identify it by its fully qualified name.

In the Computer section, choose a domain controller to connect to, or default to the domain controller you're logged in to if you are running ADSI Edit from a domain controller. Once you choose the naming contexts and the server to which you are connecting, you see them reflected within the ADSI Edit window, as shown in below figure.
 
 
 
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You can now expand the appropriate naming context to locate the objects you need to manipulate.
 
Here we are trying to remove a computer account using the ADSI edit tool.
 
If you are unsuccessful removing a computer account by using Active Directory Users and Computers, You can use this method:
 
1. Open ADSI Edit.
2. Expand Domain NC.
3. Expand DC=itoc,DC=com (here we are used itoc.com domain controller)
4. Expand OU=Domain Controllers.
5. Right-click CN=domain controller and click Delete.
 
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Figure displays the Domain Controllers node within ADSI Edit and the menu items you can choose.