Dell Optiplex Intel C2D 2.8GHz Processor w/ Windows 10 Home Edition, 160  HARD DRIVE, New 4GB Memory, DVD-CD-RW - (Certified Reconditioned) This computer has been certified refurbished by a Microsoft Authorized Refurbisher, ensuring the highest levels of quality and support. Dell 755 Core 2 Duo 2.8 GHz Processor What's Inside: 4GB RAM, 160GB Hard Drive, DVW Optical Drive, Operating System: Windows 10 Home