The -credential argument is not required because the user logged on as a member of the Enterprise Admins group:. Here is an example of removing the last domain controller in the domain with its minimal required arguments of -lastdomaincontrollerindomain and —removeapplicationpartitions :. It differs from using the -WhatIf parameter with the Uninstall-ADDSDomainController cmdlet in that instead of summarizing the changes that would occur during the uninstallation process, this cmdlet actually tests whether those changes are possible given the current environment.
For more information on the scope of these prerequisite checks that the ADDSDeployment module performs when using this cmdlet, see Prerequisite Checking. To remove a domain controller, you must be a member of the Domain Admins group in the domain.
To remove the last domain controller in a domain or forest, you must be a member of the Enterprise Admins group.
On the Before you begin page, review the information and then click Next. On the Select destination server page, click the name of the server that you want to remove AD DS from and then click Next.
The validation error appears by design because the AD DS server role binaries cannot be removed while the server is running as a domain controller. Click Demote this domain controller. If previous attempts to remove AD DS on this domain controller have failed, then you can select the Force the removal of this domain controller check box. I'm trying to find a way to ged rid of ADCS from this particular environment. Sign up or log in Sign up using Google. Sign up using Facebook.
Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. Considering that you can't do much about upgrading forest functionality etc means you already have problems with AD that will require fixing I really doubt that simply by reinstalling server and reimporting same AD data will fix the problems.
Fix Active Directory and all the problems and then migrate AD and other things as per Bart suggestion to a temporary location like setup a VM on your laptop, make it secondary AD and migrate everything to it using trial license. Then when you are sure AD migrated properly, most likely you will have to fix AD first anyway for that to succeed databases are copied, remove AD from main server using dcpromo and Roles and Feature s - hence why you should have to fix your server first.
Simply backing up System Data and Registry and reapplying it to reinstalled server may cause serious consequences and be pain in the a Also I would suggest using some imaging software to mirror drives to make sure you have a working copy it's easy to forget some important thing. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more.
Asked 9 years, 11 months ago. Active 9 years, 11 months ago. Viewed 4k times. Pure Capsaicin. Windows Server expert. Before I go in to all of your questions too much, why did you remove AD from your setup?
Gary D Williams This person is a verified professional. Verify your account to enable IT peers to see that you are a professional. Because you removed AD. You don't have local users on an Active Directory domain controller. All other domain joined servers and clients will have a local set of users.
I think you have a fundamental misunderstanding. They are not local users. I read your post about wanting it back to how it was, my question still remains. Administrator will have local admin, it'll have full permissions over the server, not necessarily over any applications that have been installed such as SQL.
Thank you If you want the server at the original state before AD was installed then you are looking at previous versions or a reinstall or something like that. If you don't have a copy of the state before AD was installed then it won't be possible to get back to that state. What was that "state"? Do you have backups of this server? The state was not have AD installed at all nothing else nothing special. Group policy doesn't apply if you don't have AD. Posting the error message would help.
How many users are you talking about? If you don't want AD, why did you install it in the first place? Your first post here was also very confusing, for those who haven't seen it and want some background, it's here You spoke about 10 domains which I assume you mean public domain TLDs for websites , you spoke about renaming the domain, now you're talking about taking it out completely.
This was one of the errors: "to manage users and groups in a domain log on as user with domain administrator rights. And this is not related to other link you entered.
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