A new feature in Windows 7 (download) allows the operating system to display unique device icons alongwith detailed product information it downloads from the Microsoft-hosted device metadata web service. You can easily find them as ICOs under the “%LOCALAPPDATA%\Microsoft\Device Metadata\dmrccache\” directory. Inside the folder appropriate to your region (ex. en-US), there should be individual folders with GUIDs for each of the devices with metadata associated with it. The icon resides in the “DeviceInformation” folder of each device.
Source:→ Long Zheng