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for businesses of all sizes, and for individuals who demand the most from their computing experience. Windows XP Professional goes beyond the benefits of Windows XP Home Edition with advanced capabilities designed specifically to optimize productivity using the latest advancements in the digital world. Built on the solid foundation of Windows 2000, Windows XP Professional provides improved reliability, security, performance and ease of use, setting the new standard in efficient and dependable computing.Microsoft Windows XP Service Pack 2 (SP2) provides an enhanced security infrastructure that defends against viruses, worms, and hackers, along with increased manageability and control for IT professionals and an improved experience for users.