Moving the Schema Master roles does not happen often but there are times when we need to do it. The Windows 2000/2003 server with Schema Master role, manages all updates and additions to the schema and then replicates those changes to other Domain controllers. Only the server with the Schema Master role can actually write to the Schema. Think of the Schema as a big dictionary, it tells Active Directory what every object means and what it does.

To move the Schema master follow the setups below.

Part 1. First you will need to register the Schmmgmt.dll
a) Click Start and then go to RUN
b) Type regsvr32 schmmgmt.dll and click ok
c) You should see a message that says

Message after successful registration Schmmgmt.dll

Part 2
1.Click Start, click Run, type mmc in the Open box, and then click OK.
2. On the File, menu click Add/Remove Snap-in.
3. Click Add.

Adding a MMC Snap-in

Selecting the Active Directory Schema Snap-in

4. In the console tree, right-click Active Directory Schema, and then click Change Domain Controller.
5. Click Specify Name, type the name of the domain controller that will be the new role holder, and then click OK.

Changing Domain Servers

6. In the console tree, right-click Active Directory Schema, and then click Operations Master.
7. Click Change.
8. Click OK to confirm that you want to transfer the role, and then click Close.

This is how you change the Schema master Role to a new server.