Demote a Windows Domain Controller Archives - Linux Windows and android Tutorials https://www.osradar.com tutorials and news and Seurity Sat, 22 Aug 2020 03:28:53 +0000 en-US hourly 1 https://wordpress.org/?v=5.8.12 How to demote Windows Server 2019/2016 Domain Controller https://www.osradar.com/how-to-demote-windows-server-2019-2016-domain-controller/ https://www.osradar.com/how-to-demote-windows-server-2019-2016-domain-controller/#comments Mon, 24 Aug 2020 21:27:00 +0000 https://www.osradar.com/?p=22959 Hi, how are you? Certainly domain controllers are a fundamental part of an organization. And more so when it uses a Windows Server-based infrastructure. Since this, facilitates the administration of domain objects. Indeed, it is necessary to promote a server to a domain controller for the roles to work properly. However, sometimes it is necessary […]

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]]> Hi, how are you? Certainly domain controllers are a fundamental part of an organization. And more so when it uses a Windows Server-based infrastructure. Since this, facilitates the administration of domain objects. Indeed, it is necessary to promote a server to a domain controller for the roles to work properly. However, sometimes it is necessary to make changes in the controller. Either by updating the controller or by defining a different name. In those cases, it will be necessary to demote the domain controller. After demoting a domain controller, it will lose its condition. However, it can still belong to the domain and continue as a server. Additionally, you can apply the necessary changes and re-promote them when necessary. Here’s how to demote Windows Server 2019/2016 Domain Controller.

Entering the server manager to demote the domain controller.

To perform this task, it is necessary to use the server manager. Once there, click on Manage. Then, click on Remove tools and Features.

Removes Roles and Features
Removes Roles and Features

The wizard will be displayed immediately. Please click on next.

Press Next to continue
Press Next to continue

Now it is time to select the server on which the Domain Controller will be demoted.

Select the server
Select the server

Next, a list of installed roles will be displayed. Please uncheck the box for Active Directory Domain Services.

Uncheck the box corresponding to Active Directory Domain Services.
Uncheck the box corresponding to Active Directory Domain Services.

A warning window will then be displayed showing all the features to be removed. Please confirm the task.

Confirm the removal of the features
Confirm the removal of the features

In order to continue, it is necessary to confirm the demotion of the domain controller.

Please confirm the demotion of the domain controller.
Please confirm the demotion of the domain controller.

The following table confirms the user credentials. Also, check the box to force the removal of the domain controller.

Verify the user
Verify the user

You will then see a summary of the roles hosted on the domain controller. Please check the box to proceed with the removal.

Please proceed with the removal.
Please proceed with the removal.

Now, to confirm you must enter the administrator password.

Please type in the administrator's password.
Please type in the administrator’s password.

One last step before proceeding is to confirm the demotion.

Please confirm the degradation of the domain controller
Please confirm the degradation of the domain controller

Demoting the domain controller and restarting the server.

Please wait a few moments while the domain controller is being demoted.

Domain controller demotion process in progress
Domain controller demotion process in progress

After a few moments, the server will ask to be restarted.

Rebooting the server
Rebooting the server

After rebooting, you can see how the computer is no longer configured as a domain controller.

In this way, we have seen how to demote Windows Server 2019/2016 Domain Controller. This is a necessary administrative task at some point for the server. We hope we have cleared up all your doubts. Before I go I invite you to see our post about how to disable the automatic startup of the server manager in Windows Server 2019/2016.

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]]> https://www.osradar.com/how-to-demote-windows-server-2019-2016-domain-controller/feed/ 1 How to Demote a Windows Domain Controller to a member server https://www.osradar.com/how-to-demote-a-windows-domain-controller-to-a-member-server/ https://www.osradar.com/how-to-demote-a-windows-domain-controller-to-a-member-server/#respond Sat, 28 Sep 2019 08:41:09 +0000 https://www.googez.com/?p=1658 Demoting a Windows Server domain controller Is a very common task In the life-cycle of every Active Directory Infrastructure

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]]> In this blog post, I’ll show How to Demote a Windows Domain Controller to a member server.

Demoting a Windows Server domain controller Is a very common task In the lifecycle of every Active Directory Infrastructure and it’s something every Systems Administrator or Systems Engineer will have to do some day.

Saying that many admins are still keeping their old Windows Server DCs online because of they afraid they will break Active Directory when removing it, This post will show you how to do the right way and optimize your Infrastructure.

It’s a known that old and unmanaged Domain Controller cause 80% of Active Directory replication and Health Issue.

First, and before demoting your Domain Controller, make sure the items below are fulfilled

  • You’ve moved the FSMO roles to another Server
  • You have at least two domain controllers in the forest
  • Active Directory Replication Is working 100%
  • The Domain Controller Is not the last DC In the forest

To complete this process, you will need to use a user account with Domain Admins permissions.

To get started, Logg into the Domain Controller with an admin user account and run the command below.

Dcpromo
Demote a Windows Domain Controller to a member server1

This will start the Active Directory Domain Services Installation wizard

Demote a Windows Domain Controller to a member server2

“OK” to confirm that the Server will no longer act a global catalog server

Demote a Windows Domain Controller to a member server3

Click next

Demote a Windows Domain Controller to a member server4

Again, click next and wait, this part can take a few minutes to complete

Demote a Windows Domain Controller to a member server5

“Finish” and restart the Server

Demote a Windows Domain Controller to a member server6
Demote a Windows Domain Controller to a member server7

After restart log Into the Server and you will see that the server is now just a member server.

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