Whether you’re a large enterprise or a small business, migrating successfully from Windows Server 2003 to Server 2012 R2 requires detailed planning and execution.
If you haven’t begun server OS migration planning by now, you’re running out of time. On July 14, 2015, Microsoft will end support for Server 2003. No more security patches, no more updates, no more support, period. Server 2003 reaches final, full end of life on July 14, 2015. There simply isn’t a sound business case (never mind technology case) for staying on an outdated, unsupported server platform.