HKLM\SYSTEM\CurrentControlSet\Control\Class\
The {4D36E972-E325-11CE-BFC1-08002BE10318} subkey represents the class of network adapter devices supported by the system.
This subkey contains several 4-digit numbered subkeys which represent particular network adapters. These subkeys store data that applies only to that device.
Caution
Do not change any entries in the Class subkey or any subkey within it. These subkeys are configured by the system to be compliant with Plug and Play standards. Changing any data can prevent your computer devices from starting or operating properly.