In the Kali Linux course at 23:00, Sean runs EnumLinux command. He starts to discuss a Windows setting in the results "RestrictedAnonymous set to 1", which means that the Windows system can create a $null session, such as with 'net use' He mentions that you can protect this security flaw by setting the value in the registry to '0'. Does anyone know where this key is, or have anymore detailed information on what is going on here?