Introduction

Completed

The first step in moving your organization’s Active Directory Domain Services domain controllers to Windows Server 2025 is to determine whether you want to upgrade your existing domains and forest or migrate to a newly deployed forest. If you decide to upgrade your existing domains and forest, you need to know the steps required to introduce and then switch over to Windows Server 2025 domain controllers. If you’re going to migrate to a new forest, you need to know which steps to take to move between your existing AD DS environment and your new one.

Learning objectives

In this module, you will:

  • Compare upgrading an AD DS forest and migrating to a new AD DS forest.
  • Describe how to upgrade an existing AD DS forest.
  • Describe how to migrate to a new AD DS forest.
  • Describe Active Directory Migration Tool (ADMT).

Prerequisites

  • Windows Server administration basics
  • Experience with managing Active Directory Domain Services