umm wouldn't it be simpler to do this the recommended way? Find the Wireless adapter in Network Connections. Right-Click on it and select rename.
As far are not having rights did you first make sure to run the registry editor in admin mode?
That just changes the name of the connection (i.e. Wi-Fi) to something else, not the actual name of the adapter. At least to my knowledge.
And yeah, I've been in admin mode the whole way.