100% aunthentic stright from microsoft if it's not your money back please e-mail me if any questions thank you .

ps. the more you oder the better
the price

Designed for reliability, security and privacy, high performance, and ease of use, the Windows XP operating system provides a host of benefits for business and home users. A clean and simple desktop, rock-solid reliability, and easy-to-use features that take advantage of the digital age all contribute to the value of Windows XP