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You can use ADMT - Active Directory Migration Tool. <a href="https://www.microsoft.com/en-us/download/details.aspx?id=19188" rel="ugc">https://www.microsoft.com/<wbr />en-us/down<wbr />load/detai<wbr />ls.aspx?id<wbr />=19188</a>
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You can use ADMT - Active Directory Migration Tool. https://www.microsoft.com/en-us/download/details.aspx?id=19188 [https://www.microsoft.com/en-us/download/details.aspx?id=19188]

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The absolute best documentation for the ADMT process<br />
<a href="https://blog.thesysadmins.co.uk/admt-series-1-preparing-active-directory.html" rel="ugc">https://blog.thesysadmins.co.uk/admt-series-1-preparing-active-directory.html</a>
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The absolute best documentation for the ADMT process
https://blog.thesysadmins.co.uk/admt-series-1-preparing-active-directory.html [https://blog.thesysadmins.co.uk/admt-series-1-preparing-active-directory.html]

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how can i migrate users and computers from windows server 2003 to windows server 2008 in same forest.<br />
<br />
should i use robocopy, DFS-R or any other method.i believe for files we use FRS ?<br />
<br />
will it be same if i use the same tool for migrating users and computers across cross forest?
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how can i migrate users and computers from windows server 2003 to windows server 2008 in same forest.

should i use robocopy, DFS-R or any other method.i believe for files we use FRS ?

will it be same if i use the same tool for migrating users and computers across cross forest?

active directory

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).