how to demote domain controller server 2012?
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The Remove Roles and Features dialog box Remove features that require Active Directory Domain Service pops up, select Remove Features. On the Remove Roles and Features Wizard dialog box Validation Results box will appear. The domain controller must be demoted before continuing. Click on Demote this domain controller.
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['2 Click/tap on Access work or school on the left side, click/tap on the connected AD domain (ex: "TEN") you want to remove this PC from, and click/tap on the Disconnect button. ( ... ', '3 Click/tap on Yes to confirm. ( ... ', '4 Click/tap on Disconnect. ( ... ', '5 Click/tap on Restart now.']
1044458
['On the Manage Your Server wizard, choose Adding Roles to Your Sever.', 'In the Server Role window, choose Domain Controller (Active Directory).', 'Accept the default values by clicking Next.']
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['Restart the domain controller (DC) of interest.', 'When you see the menu to select the OS, press F8.', 'From the Windows Advanced Options Menu, select Directory Services Restore Mode, then press Enter.']
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With the dcpromo /forceremoval command, you can demote the domain controller to the member server. If one of the FSMO roles is found on the domain controller, you will be asked to transfer it to another DC first. If this server is a Global catalog, a warning will also appeared.
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['Log in to an on-premises domain controller using a Domain or Enterprise administrator account.', 'Open Active Directory Domains and Trusts.', 'Right-click the domain and select Properties.', 'On the Trust tab, select New trust.', 'Select Next on the New Trust Wizard.']
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In the Deleting Domain Controller dialog box, select This Domain Controller is permanently offline and can no longer be demoted using the Active Directory Domain Services Installation Wizard (DCPROMO), and then click Delete.
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["Insert the Windows Server 2003 CD-ROM into your computer's CD-ROM or DVD-ROM drive.", 'Click Start, click Run, and then type dcpromo.', 'Click OK to start the Active Directory Installation Wizard, and then click Next.', 'Click Domain controller for a new domain, and then click Next.']
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Delete the computer object associated with the failed domain controller. Windows Server 2003 AD might display a new type of question window, asking you if you want to delete the server object without performing a DCPROMO operation . Select “This DC is permanently offline…” and click on the Delete button.
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['Step 1- Log in to the domain controller as administrator. A standard domain user account is not in the local Administrators group and will not have the proper permissions to configure Group Policies.', 'Step 2 - Launch the Group Policy Management Tool. ... ', 'Step 3 - Navigate to the desired OU. ... ', 'Step 4 - Edit the Group Policy.']
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['Open Server Manager. ... ', 'On the Select installation type page, click Role-based or feature-based installation and click Next.', 'On the Select destination server page, click Select a server from the server pool, click the name of the server where you want to install AD DS and then click Next.']
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Log onto a server or desktop with RSAT installed. Launch the Active Directory Users and Computers. From the navigation tree on the left side of the console, expand the forest name, and select the Domain Controllers OU. Right-click the failed domain controller and then select Delete.
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Right-click the domain controller that was forcibly removed, and then click Delete. In the Active Directory Domain Services dialog box, click Yes to confirm the domain controller deletion.
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In the left pane, expand the site that contains the domain controller. Expand the Servers container. Right-click on the domain controller you want to move and select Move. In the Move Server box, select the site to which the domain controller will be moved and click OK.
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['Add new computer to domain.', 'Promote system to a domain controller (dcpromo)', 'Transfer FSMO roles.', 'Verify/Make the new system a Global Catalog.', 'Wait some time for replication to take place. ... ', 'Demote old system (dcpromo)', 'Double check DNS zones & AD to make sure old system was removed.']
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['To do this you will need to boot into DSRM (Directory Services Restore Mode) by restarting your server and pressing F8 during the restart.', 'Choose Directory Services Restore Mode from the Advanced Boot menu.']
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['Login to the Domain controller using Enterprise Admin credentials.', 'Open Active Directory Administration Center from Administration tools.', 'Select the Domain name and click Enable Recycle bin from Right side panel.', 'Press OK in the confirmation and refresh the Administration center.']