Cannot determine source of error reported in Device Manager

I clicked on Device Manager > Other Devices > Mass Storage Controller. Under Device Status it said, "The drivers for this device are not installed. (Code 28)."

I don't know what device they are talking about. All the storage devices on my PC seem to be working. Why does DM think there is a Mass Storage Controller at location PCI bus 7, device 1, function 2?

I clicked on Update Drive - search failed to find a driver and suggested none needed. I clicked the Uninstall button and the message dissapeared until I rebooted the system.

Can somone tell me why Windows 7 might think there is a Mass Storage Controller on my PC?

Brink said:

It may be the "card reader" drivers it's wanting to be installed.
Shawn

There is a slot on the front of my PC where a memory card could be inserted. It's empty.

How can I determine the machine address for the slot? I clicked on Device Manager > Mass Storage Controller > Details tab, and scrolled down the list of items shown in the Properties field until I came to Locations. This caused the Value field to show PCIROOT(0)#PCI(1E00)#PCI(0102). Could this be it?

What if I inserted a memory card, would send a request for a driver?

Thank's for providing a sensible idea thay lead to solution.

KC