This procedure requires the ActiveDirectory PowerShell module to be installed and loaded.
These commands can be run from either the current or future role holder, or from a member computer running RSAT.

Roles can be specified by name or number, the following table outlines the Names & Numbers for the FSMO roles:

Transfer Roles

In order to transfer all roles the following command is used:

Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole SchemaMaster,RIDMaster,InfrastructureMaster,DomainNamingMaster,PDCEmulator
or
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole 0,1,2,3,4

Seize Roles

Roles can be seized rather than transferred by adding the -Force parameter. For example:
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole SchemaMaster,RIDMaster,InfrastructureMaster,DomainNamingMaster,PDCEmulator -Force
or
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole 0,1,2,3,4 -Force

Transfer Individual Roles

Obviously each role can also be moved independently by specifying a single role as per the command below (to transfer the PDC Emulator role):
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole PDCEmulator
or
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole 0

Seize Individual Roles

Here is an example of Seizing the Schema Master role:
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole SchemaMaster -Force
or
Move-ADDirectoryServerOperationMasterRole -Identity "<NEW_DC>" -OperationMasterRole 3 -Force