Migrate from Windows 2003 to 2012

How To Migrate from Windows 2003 to 2012

Bellow Steps will be guide you to Migrate to 2012
On your Domain 2003 Use Netdom Comand to Determining FSMO Role Holders By Type 
Netdom Query FSMO

    Raise domain functional level
    Go to " Active Directory Users and computers "
    And Right Click on You Domain name 
    Then Click on " Raise Domain Functional Level "

    Then from the Drop-Down Menu select " Windows Server 2003 "  and Click " Raise "
   

    Raise Forest functional level
    Go to " Active Directory Domains and Trusts " 
    And Right Click Active Directory Domains and Trusts 
    Then Click on " Raise Forest Functional Level "

Then from the Drop-Down Menu select " Windows Server 2003 "  and Click " Raise "

On The New OS " Windows 2012 "
Add New Role From " Server Manager "
Active Directory Domain Services
And
DNS

After Installation Succeeded
Promote This Server to A Domain Controller

Select " Add a Domain Controller to an Existing Domain "
And Type The Admin " Full Username And Password "
On Supply The Credentials to Perform This Operation 

In Domain Controller Options 

Type The DSRM Password   

In Additional Options 
         Specify Additional Replication Options by Select It
         in " Replicate From "

                                     

After All Prerequisite Checks Passed Successfully , Click " Install " To begin Installation 

After adding a Windows Server 2012 Domain Controller to an existing domain you should also transfer the FSMO roles to the New Domain Controller

By Go to 

Active Directory Users And Computers 

And Right Click On Your domain Name and Select " Operation Masters " 

                                     

To Transfer " RID" Press Change 

                                           

To Transfer " PDC " Press Change 

To Transfer " Infrastructure " Press Change 

and To Transfer the " Domain Name " go to Avtive Directory Domain and Trust from Server Manager 

and right Click and select " Operations Masters " 

                                               

And Press Change                          

     

to Transfer the Schema Master Role go To Now on Windows 2003 and Register Schmmgmt.dll

By Type " regsvr32 schmmgmt.dll " on CMD

on MMC add snap-in

and Select " Active Directory Schema " 

Right Click on Active Directory Schema 

and Select Change Domain Controller 

and Type the new Domain name 

                                      

and transfer the schema Role to the new domain by go to Operations Masters

To Make Sure That All FSMO Roles transferred to the New Domain

Use The " Netdom " Command 

                      

Before Demote The Windows 2003 Domain Controller

Uncheck the Global Catalog Setting 

from Active Directory Sites and Services  

Go to Active Directory Sites and Services and Right Click on Your old Domain name then Properties 

                        

  

Now Demote The Windows 2003 Domain Controller

By Type " Dcpromo " on Run

                                            

Type Anew Administrator Password 

Now it's Done 

you can view the Step over my Video on Youtube