Find PCI device reference in registry

To know more about this PCI device then you will need to click on the key above it, in our example:

3&61aaa01&0&90

Once this key has been selected then you will need to look at the following 3 values to the right:

• Class
  This value stores the type of device, in our example this was classed as “Media” (there are other likes Modem, Net, System, etc).
• DeviceDesc
  This value stores the device description, in our example the description was “Creative AudioPCI (ES1371, ES1373) (WDM)”.
• Mfg
  This value stores the manufactures information, in our example “Creative Technology Ltd”.

Now that you know how to identify and interpret the devices information after it has been detected, we will have a look at the Unknown devices.

For your information, in the following example I have voluntarily removed the network cards drivers and deleted all traces of it so that any detection will turn up as unknown. Therefore this is a perfect simulation of an unknown device.

The start is nearly identical. You will need to go to this key:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\PCI

Click on each of the sub keys under PCI, and select each one of the keys that are underneath (1), try to repair the Class (2) value to the right and if the value s Unknown (3) then you have found the device that you are looking for. You can see this from the screen capture:

The key in question is the following:
VEN_1022&DEV_2000&SUBSYS_20001022&REV_10

• VEN = Vendor ID = 1022
• DEV = Device ID = 2000
• SUBSYS = Subsystem ID = 20001022
• REV = Hardware Revision ID = 10

We have now found the information that we are looking for and to complete the process we will need to go to the site: http://www.pcidatabase.com