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I think you are going to have to change one of the domain names. Otherwise, I don't think you can do this and would have to enter the users by name from one of the domains.
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I think you are going to have to change one of the domain names. Otherwise, I don't think you can do this and would have to enter the users by name from one of the domains.

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We need to merge a 2008 and 2012R2 Windows domain into one 2012R2 domain. &nbsp;The issue is they both have the exact same now. &nbsp;Please let me know how these can be merged or at least joined so users can be consolidated.
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We need to merge a 2008 and 2012R2 Windows domain into one 2012R2 domain.  The issue is they both have the exact same now.  Please let me know how these can be merged or at least joined so users can be consolidated.

Merge windows domains with same name

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 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

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.