<div>
this is usually due to dns entries existing for the dc on incorrect IPs. maybe it once had a dchp address that was added to dns.<br />
check the nameservers tab in dns to see what entries this server has in there.
</div>


this is usually due to dns entries existing for the dc on incorrect IPs. maybe it once had a dchp address that was added to dns.
check the nameservers tab in dns to see what entries this server has in there.

<div>
Open powershell as an administrator on the domain controller and run the below 2 commands<br />
1. Import-Module ActiveDirectory<br />
2. Uninstall-ADDSDomainContro<wbr />ller -RemoveDnsDelegation
</div>


Open powershell as an administrator on the domain controller and run the below 2 commands
1. Import-Module ActiveDirectory
2. Uninstall-ADDSDomainController -RemoveDnsDelegation

<div>
Fox, neither of those commands worked, error out
</div>


Fox, neither of those commands worked, error out

<div>
ALL the Active Directory Features are not working or functioning, showing anything, just that ADDS/DNS are still installed and I can't uninstall them, so I am wondering do I just un-join from the Domain and power it down, thoughts?
</div>


ALL the Active Directory Features are not working or functioning, showing anything, just that ADDS/DNS are still installed and I can't uninstall them, so I am wondering do I just un-join from the Domain and power it down, thoughts?

<div>
Have you previously tested shutting down/disconnecting this 2008 from network and whether the new 2016 functioned without a hitch?
</div>


Have you previously tested shutting down/disconnecting this 2008 from network and whether the new 2016 functioned without a hitch?

<div>
no but will try that and will see what happens.
</div>


no but will try that and will see what happens.

<div>
&gt;&gt;DCPROMO was unable to remove DNS Delagations from the Parent Zone<br />
<br />
<b><a href="https://www.petenetlive.com/KB/Article/0001287" rel="ugc">mmm what's the parent zone?</a></b><br />
<br />
&lt;/p&gt;
</div>


>>DCPROMO was unable to remove DNS Delagations from the Parent Zone

mmm what's the parent zone? [https://www.petenetlive.com/KB/Article/0001287]

</p>

Active Directory/Exchange/M365 Engineer

<div>
Did you check the IPs listed in the nameservers tab as noted above?<br />
That's usually the issue, then you can demote it as normal without a workaround.
</div>


Did you check the IPs listed in the nameservers tab as noted above?
That's usually the issue, then you can demote it as normal without a workaround.

<div>
thank you all again for taking the time to provide input.
</div>


thank you all again for taking the time to provide input.

<div>
<div class="content wysiwyg-content">
I am trying to demote a Windows Server 2008 as DC and uninstall AD/DNS, I have already promoted the WIndows Server 2016 with AD/DNS/DHCP/FSMO Roles <br />
I tried to run the DCPROMO to demote and got an error &quot;DCPROMO was unable to remove DNS Delagations from the Parent Zone...then i went in to Server Manager and remove Roles and tries to uninstall ADS/DNS and it just hangs on Initializing removal and does not process any further. <br />
Any Suggestions appreciated on how to remove these roles, we are demoting the Server and taking it offline
</div>
</div>


I am trying to demote a Windows Server 2008 as DC and uninstall AD/DNS, I have already promoted the WIndows Server 2016 with AD/DNS/DHCP/FSMO Roles 
I tried to run the DCPROMO to demote and got an error "DCPROMO was unable to remove DNS Delagations from the Parent Zone...then i went in to Server Manager and remove Roles and tries to uninstall ADS/DNS and it just hangs on Initializing removal and does not process any further. 
Any Suggestions appreciated on how to remove these roles, we are demoting the Server and taking it offline

Demoting Windows 2008 DC and removing Server

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).

Windows Server 2003

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

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

Microsoft Azure is a cloud computing platform and infrastructure for building, deploying and managing applications and services through datacenters. It provides both platform-as-a-service (PaaS) and infrastructure-as-a-service (IaaS) services and supports many different programming languages, tools and frameworks, including both Microsoft-specific and third-party software and systems. Cloud Services is a PaaS environment and can be used to create scalable applications and services; there are specific software development kits (SDKs) provided by Microsoft for Python, Java, Node.js and .NET. Azure also has file and storage services, data management, analytics and DNS services.

Azure

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.