Remove excess network card Local Area connection with registry

After the NIC has gone wrong and reinstalled the NIC driver, the system will automatically create the connection and the connection will be changed from the original "Local Area Connection" to "local Connection 2". Information about "Local Area Connection" still exists in the system.

When you set up the IP information in "Local connection 2", if these parameters are the same as those set in the previous "Local Area Connection", the system will prompt the information that is occupied by the other network card, at this time you can manually delete the previous connection information, the "Local Connection 2" to "local connection", the problem can be solved by the following methods:

Open Registry Editor, expand to "hkey_local_mchinesystemcurrentcontrolsetcontrolnetwork{4d36e972-e325-11ce-bfc1-08002be10318}",

Information about local connections is stored under this subkey. There is one or more subkeys here, where the first subkey corresponds to the "local connection", the second subkey corresponds to "Local connection 2" and so on, you can expand the subkey, and then select the following "Connection" subkey, in the right window will see exactly which connection is corresponding, The entire subkey that corresponds to the previous old connection is deleted directly.