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I have a Windows 2008 R2 server that was used as an ADMT server for migrating 2 separate domains into a new single domain. &nbsp;The current domain is a Windows 2012 domain. &nbsp;A while ago, a network refresh occurred and someone shut this server down and never powered it back up. &nbsp;This has been about 3 months. &nbsp;I would like to decommission it, but I'm afraid to power it back on to demote it and remove it from the domain. &nbsp;My fear would be reverse replication where it pushes old Active Directory data to our good domain controllers. &nbsp;Would that happen? &nbsp;Could that happen? &nbsp;Should I just treat it as an orphaned domain controller and try to manually get rid of it? &nbsp;Or is it safe to power it on and demote it? &nbsp;Thanks!<br />
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Mark
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I have a Windows 2008 R2 server that was used as an ADMT server for migrating 2 separate domains into a new single domain.  The current domain is a Windows 2012 domain.  A while ago, a network refresh occurred and someone shut this server down and never powered it back up.  This has been about 3 months.  I would like to decommission it, but I'm afraid to power it back on to demote it and remove it from the domain.  My fear would be reverse replication where it pushes old Active Directory data to our good domain controllers.  Would that happen?  Could that happen?  Should I just treat it as an orphaned domain controller and try to manually get rid of it?  Or is it safe to power it on and demote it?  Thanks!

Mark

Turned off Domain Controller

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 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

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.