Wind Top AP2011 carries with Genuine Windows® 7 Professional and also features unique energy-saving technology- LED panel, providing power consumption that is approximately 30% lower than conventional CCFL panel. Combined with MSI's other energy-saving technologies, this can help business enterprises to make substantial savings on their electricity bill, making this a truly "green" PC. With its energy-saving design and its unique combination of advanced technology and efficient functionality, the Wind Top AP2011 is ideal for both individual users and business enterprises.