If you have opened the Windows Device Manager and spotted a yellow exclamation mark next to an entry labeled you are not alone. This is one of the most common "Unknown Device" errors encountered by Windows users.
Here’s a clear, helpful explanation and solution: controller pci simple communications
[NUC] Error on PCI Simple Communications Controller ... - ASUS If you have opened the Windows Device Manager
Look for a value like VEN_8086&DEV_xxxx (where 8086 is the vendor ID for ) [2, 16]. Download the Intel Management Engine Driver : controller pci simple communications