carbonbase

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What does your app require, if I may ask? A forest functional level of at least 2016? Then your 2012 DC can't be used any longer.
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What does your app require, if I may ask? A forest functional level of at least 2016? Then your 2012 DC can't be used any longer.

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Thanks both, application is Windows Hello<br />
<br />
<a href="https://docs.microsoft.com/en-us/windows/security/identity-protection/hello-for-business/hello-hybrid-key-trust-prereqs" rel="ugc"></a><br />
<br />
According to the above, there is no requirement for Forest/Domain functional level upgrade.<br />
<br />
Double-checking... schema updates are forest wide?
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Thanks both, application is Windows Hello

https://docs.microsoft.com/en-us/windows/security/identity-protection/hello-for-business/hello-hybrid-key-trust-prereqs

According to the above, there is no requirement for Forest/Domain functional level upgrade.

Double-checking... schema updates are forest wide?

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Qouting <a href="http://techgenix.com/upgrading-active-directory-schema/" rel="ugc">http://techgenix.com/upgrading-active-directory-schema/</a><br />
<br />

<blockquote>
ADPrep /ForestPrep: Use this command to run a forest-wide schema update operation.<br />
<br />
ADPrep /DomainPrep: Use this command to run a domain-wide schema update operation.
</blockquote>
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Qouting http://techgenix.com/upgrading-active-directory-schema/ [http://techgenix.com/upgrading-active-directory-schema/]



> ADPrep /ForestPrep: Use this command to run a forest-wide schema update operation.
> 
> ADPrep /DomainPrep: Use this command to run a domain-wide schema update operation.

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The act of promoting a Windows 2016 and 2019 server to a DC should automatically update the schema for you - you shouldn't need to run ADPREP at all.
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The act of promoting a Windows 2016 and 2019 server to a DC should automatically update the schema for you - you shouldn't need to run ADPREP at all.

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Thanks again everyone for your help on this.
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Thanks again everyone for your help on this.

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<div class="content wysiwyg-content">
adding windows 2016 or windows 2019 to windows 2012 r2 Domain<br />
<br />
We have a new application which requires windows 2016 or 2019 DC. &nbsp;We currently have Windows 2012 DC's with Forest and Domain Functional levels set at windows 2012 r2.<br />
<br />
While either 2016 or 2019 would work for us, I'm leaning towards windows 2019 OS for future proofing.<br />
<br />
My main question is this really, Is a schema update a definite requirement when adding a windows 2016 (or windows 2019) DC? and presumably the schema will be updated across the Forest?
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adding windows 2016 or windows 2019 to windows 2012 r2 Domain

We have a new application which requires windows 2016 or 2019 DC.  We currently have Windows 2012 DC's with Forest and Domain Functional levels set at windows 2012 r2.

While either 2016 or 2019 would work for us, I'm leaning towards windows 2019 OS for future proofing.

My main question is this really, Is a schema update a definite requirement when adding a windows 2016 (or windows 2019) DC? and presumably the schema will be updated across the Forest?

adding windows 2016 or 2019 DC to windows 2012 domains - schema update required?

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.

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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

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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

Windows Server 2016 is the successor to Windows Server 2012 R2. Built upon the same core code as Windows 10, Windows Server 2016 brings enhancements in security, servicing, and connectivity. A particular focus on this release was hybrid-cloud scenarios, and has close ties to Azure and other Microsoft cloud initiatives. This does not detract from the many improvements that are available for on-premises-only deployments

Windows Server 2016 comes in Datacenter, Standard, and Essentials editions, and for servicing, has adopted windows 10's cumulative model. The new nano-server install is designed to be remotely managed and is designed to be kept current through continuous feature updates. The full GUI install operates similarly to windows 10's "Long Term Servicing Branch" (LTSB) model with cumulative security updates.

Windows Server 2016 has also shifted from a per-processor-and-CAL licensing model to a per-core-and CAL licensing model. This brings Windows Server's licensing more in line with Microsoft's other products and makes hybrid-cloud license planning easier as well.