This comprehensive guide to Windows Server 2003 end of support contains all you need to know to begin planning your migration to Windows Server 2012 R2.
Russell Smith shows us how to migrate Windows Server 2003 file servers using Windows Server migration tools.
Russell Smith teaches us how to install and migrate DHCP settings, as well as steps for demoting a Windows Server 2003 domain controller, and raising domain and forest functional levels.
Russell Smith shows us how to migrate Active Directory domain controllers running Windows Server 2003, including DNS and DHCP, to Windows Server 2012 R2.