Windows Server

Organizational Unit: How to delete OUs or Container in Active Directory

An organizational unit (OU) is a container within the Active Directory in which you can place users, groups, computer objects, and even nested OUs. You can create organizational units to mirror your organization’s functional or business structure. OU owners are data managers who control a subtree of objects in Active Directory Domain Services (AD DS). See the following article on how to create a contact in AD, and for a detailed list of articles on Active Directory, visit the following link. For some related content on Active Directory, see the following guides. Active Directory Authentication methods: Kerberos and NTLM, Concept of AD Computer Account, and how to install RSAT on Windows 10.

Active Directory is a directory system from  Microsoft,  which can be installed on a Windows server. The Active Directory is used in companies to store objects such as computers, users, groups, etc. in the directory system. With the help of the directory system, the objects can be managed centrally and access to other resources such as file servers in the company can be controlled.

To delete a container or OU, please follow the steps described below.
– Login to your domain controller or use RSAT. See some articles on RSAT here.
– Navigate to Start
→ Administrative tools
→ Active Directory Users and Computers.

Alternatively, you can also launch this from the Tools menu under Server Manager.
- Locate the Organisation Unit you wish to delete. I will first try to delete it without disabling the protection so you could see the kind of error it will prompt.

Click on Yes, it will through an error afterwards because the OU is protected.

As we can see, the OU cannot be deleted because, it is protected against accidental deletion.

To fix this issue,
– Click on View on the menu bar, and then
– Click on Advanced Features.

Navigate to the OU that you want to delete,
– Right-click on it and click on Properties.
– Now right-click on the OU and select properties
– Under the object tab,
– uncheck the “Protect against accidental deletion

As you can see, it has been unchecked “Protect from accidental deletion”.

Now proceed to delete the container once more. This time, no error message will be prompted.

As we can see below, the OU has been deleted.

I hope you found this blog post helpful. If you have any questions, please let me know in the comment session. I welcome you to follow me on Twitter and Facebook.

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