\n\t
  1. Open command prompt
  2. \n\t
  3. type ntdsutil
  4. \n\t
  5. type roles
  6. \n\t
  7. type connections
  8. \n\t
  9. type the name of the server in which you wish to transfer the roles to connect to server <ServerName>
  10. \n\t
  11. type quit
  12. \n\t
  13. type transfer schema master
  14. \n\t
  15. type transfer domain naming master
  16. \n\t
  17. type transfer pdc
  18. \n\t
  19. type transfer rid
  20. \n\t
  21. type transfer infrastructure master
  22. \n
\nYou can now demote your old DC if you wish by running dcpromo