Windows Server 2008 R2 SP1 is the latest Windows Server operating system from Microsoft. R2 SP1 is the right foundation for today’s businesses to design tomorrow’s automated, secure datacenters and cloud computing solutions. And for today’s datacenter concerns, it can immediately reduce operating costs and increase efficiencies via features like enhanced management control, improved energy efficiency, and enhanced workload performance through full support for 64-bit computing. It also provides improved branch office capabilities, exciting new remote access experiences, streamlined server management, and a powerful new in-box virtualization solution spanning both clients and servers.