To delete a local connection 2 method

Workaround: 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.