The seller immediately replaced a failed DVD RW device, and responded quickly to my question about where the Windows product key could be found. The computer was as advertised. However, it wasn't obvious that it would not have a Windows product key that could be used in a VM on this same computer. It is somehow linked to a hardware signature on the motherboard. Also, the seller did not ensure the latest firmware was installed (It was at least 5 years old), nor did they check the functioning of the the DVD RW device.