How To Remove Active Directory Domain Services From Windows 2012

How to bench a Domain Controller (DC) in Windows Server 2012 Active Directory Domain Services (AD DS)

In this web log we will explore how to bench a domain controller in Windows Server 2012 Active Directory Domain Services (AD DS).

In previous versions of Windows Server to demote a domain controller you lot would utilize the DCPROMO.exe utility.  In Windows Sever 2012 the DCPROMO utility has been deprecated.

In Windows Server 2012 we will utilise Server Manager or PowerShell to demote the DC.  In this blog I will be using the GUI to demote the server director. So permit's get started.

To bench a DC from AD DS consummate the following steps:

Employ Server Manager to remove the Active Directory Domain Services Role.

Launch Server Manager, select the Manage driblet down menu, select Remove roles and features.

1. Review the Earlier You lot Brainstorm folio, Click Next.
2. On the Select installation type page ensure Role-based or feature-based installation radial push is selected, click Side by side.
3. On the Select destination server folio Select the desired server from the Server Pool.

Annotation:  The 2012 Server Managing director allows roles and features to exist installed remotely.

4. On the Remove Roles and Features Wizard, click on the Agile Directory Domain Services box to remove the check box.

5. The Remove Roles and Features dialog box Remove features that crave Active Directory Domain Service pops up, select Remove Features.
6. On the Remove Roles and Features Wizard dialog box Validation Results box volition appear. The domain controller must be demoted before standing.  Click on Demote this domain controller.

7. On the Active Directory Domain Services Configuration Wizard enter the required credentials to demote this server, click Side by side.

Annotation:  To bench replica domain controller you must exist at the to the lowest degree a Domain Admin to remove an entire domain from the forest or to bench the final DC of a Wood yous must provide Enterprise Admin credentials.

Note:  Simply select Force the removal of this domain controller if the DC and not communicate with the remaining DCs.

8. On the New Administrator Password, enter and ostend the new local administrator account password, click Next.

9. On the Review Options verify the information is correct and click Bench.

This will brainstorm the demotion process.  To terminate the demotion the server volition automatically restart.

Note:  When the server restarts it will be a member of the domain that is was previously a domain controller in.

Annotation:  The Binaries for AD DS are however installed on the server.  If this server is non going to exist promoted back to a domain controller in the future rerun the Remove Roles and Features Wizard to remove the AD DS Role from the server.

Verifying the Removal of AD DS

1. Logon to the server hosting the DNS service for the domain using the Administrator account credentials.
2. Launch the DNS console and verify the deletion of Service Records for the removed domain controller.

Active Directory Domain Services is now been removed from this server.

Until then, RIDE Prophylactic!

Rick Trader
Windows Server Instructor – Interface Technical Grooming
Phoenix, AZ

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