Active directory: Delete a child domain

In the article Active directory: setting up a child domain where I explain how to configure a child domain in an Active Directory environment, I will explain here how to delete a child domain. As a reminder, when setting up the child domain, a trust relationship was created between the two domains and DNS delegation …

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Remove an Active Directory Domain Controller

Supprimer controleur de domaine

In this article, we will see how to remove a domain controller in an Active Directory environment. The deletion is done in two steps: Demote the domain controller: remove the controller configuration. Delete roles. Before downgrading the server, ensure that the server does not have an FSMO role and always have at least 2 active …

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DFS replication resolve error 4012

This article describes how to troubleshoot the DFS Replication Service 4012 error. In the Windows event log you have an error like this: The DFS Replication service stopped replication on the folder to the following local path: C: \ Windows \ SYSVOL \ domain. This server was disconnected from the other partners for a period …

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GPO: Disable Server Manager at Logon


When logging on to a Windows Server (since 2008), the server manager opens automatically, but you do not necessarily need it. Personally, I even find that it tends to slow down the system. In this tutorial, we will see how to disable it with Group Policy (GPO) in an Active Directory environment. GPO: disable the …

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Approval relationship between this workstation and the primary domain failed

Windows 7/8/2008/2012 Here is how to fix this problem : 1. Log in with a local administrator account 2. Launch a command window in administratorr 3. Enter the following command: NETDOM RESETPWD / /ud:[email protected] /pd:MotDePasse 4. Restart the computer Windows 10/2016/2019 With Windows 10, there are several solutions to fix the problem, which we will …

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