HP Elite C2D 3.0ghz, New 4GB Memory, 250GB, Windows 10 Professional (Certified Refurbished) This computer has been certified refurbished by a Microsoft Authorized Refurbisher, ensuring the highest levels of quality and support. HP 8000 Core 2 Duo 3.0 GHz Processor What's Inside: 4GB RAM, 250GB Hard Drive, DVD Optical Drive, Operating System: Windows 10 Professional