Rather than using the GUI, you can move the Active Directory (AD) from the command prompt using PowerShell in just a few seconds, rather than minutes.
Import the Active Directory PowerShell module:
Transfer all the FSMO roles at once, or one by one:
Move-ADDirectoryServerOperationMasterRole -Identity "<DC_Name>" -OperationMasterRole PDCEmulator, RIDMaster, InfrastructureMaster, SchemaMaster, DomainNamingMaster
There are five FSMO roles to transfer:
To check which FSMO roles are on what domain controller, from the command prompt run netdom query /d:<domain> fsmo