Operating System: Genuine Windows 7 Professional (available through downgrade rights) and Genuine Windows 8 Pro 64-bit
With USB Keyboard and Optical Mouse
** This item must be shipped to the billing address if paid with Credit/Debit Card.**
** This item is eligible for replacement only and is NON REFUNDABLE. **
** Product warranty is provided solely by the product manufacturer. **
* Product descriptions and part numbers are subject to change, and may not reflect manufacturer product changes. Please check the manufacturer's website and use the item's manufacturer part number to find the most up to date product description.