HP Elite Core 2 Duo 3.00GHz Desktop Computer 4GB 250GB Win 7 Pro Core 2 Duo 3.00 GHz 4GB RAM 250GB SATA HDD DVD-ROM Operating System: Windows 7 Pro 64 Bit This certified reconditioned product is tested and certified by the manufacturer or by a third-party seller to look and work like new, with some signs of wear. The reconditioning process includes functionality testing, inspection and repackaging.