How to Add Windows Server 2012 into 2003 Network

Back up Domain Controller:
 
Login to your domain controller, and perform the following steps:
  1. Create a D:\Backup\ folder.
  2. Click Start >> All Programs >> Accessories >> System Tools >> Backup >> Click [Next] >> Select Backup Files and Settings >> [Next] >> Select Let me choose what to back up >> [Next] >> Expand My Computer >> Check System State >> [Next] >> Set the location of the backup file to D:\Backup\ folder >> Set the Name of the Backup to “PDC System State” >> Click [Next] >> [Advanced] >> Select Normal >> [Next] >> Check the Verify Data after Backup box >> [Next] >> Select Replace the existing backups >> [Next] >> Select Later >> Set the Job Name to “PDC System State}” >> Click [Set Schedule] >> Schedule the job to run Daily at 2:00am >> Click [OK] >> Enter a set of user credentials >> [OK] >> Click [Next] >> Enter a set of the user credentials >> [OK] >> [OK] >> [Finish]
  3. Run the scheduled task once to generate the first backup file
 
Transfer FSMO Roles:
 
Locate which server has all 5 FSMO roles by connecting to existing 2003 Server:
cmd: #netdom query fsmo
 
Consolidate the FSMO roles by using the Ntdsutil utility, follow these steps:
  1. Log on to a Windows 2000 Server-based or Windows Server 2003-based member computer or domain controller that is located in the forest where FSMO roles are being transferred. We recommend that you log on to the domain controller that you are assigning FSMO roles to. The logged-on user should be a member of the Enterprise Administrators group to transfer Schema master or Domain naming master roles, or a member of the Domain Administrators group of the domain where the PDC emulator, RID master and the Infrastructure master roles are being transferred.
  2. Click Start, click Run, type ntdsutil in the Open box, and then click OK.
  3. Type roles, and then press ENTER.
     
    Note To see a list of available commands at any one of the prompts in the Ntdsutil utility, type ?, and then press ENTER.
  4. Type connections, and then press ENTER.
  5. Type connect to server servername, and then press ENTER, where servername is the name of the domain controller you want to assign the FSMO role to.
  6. At the server connections prompt, type q, and then press ENTER.
  7. Type “transfer PDC” – press ENTER
  8. Type “transfer naming master” – press Enter
  9. Type “transfer RID master” – press Enter
  10. Type “transfer schema master” – press Enter
  11. Type “transfer infrastructure master” – press Enter
  12. Type “q,” and then press ENTER to gain access to the ntdsutil prompt. Type q, and then press ENTER to quit the Ntdsutil utility.
 
Promote Windows 2012 Server to PDC:
 
Run CMD as Domain Administrator – “regsvr32 schmmgmt.dll”
Run wizard from Servers control panel

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