This policy setting allows the configuration of wireless settings using Windows Connect Now (WCN). The WCN Registrar enables the discovery and configuration of devices over Ethernet (UPnP) over In-band 802.11 Wi-Fi through the Windows Portable Device API (WPD) and via USB Flash drives.Additional options are available to allow discovery and configuration over a specific medium. If you enable this policy setting additional choices are available to turn off the operations over a specific medium. If you disable this policy setting operations are disabled over all media. If you do not configure this policy setting operations are enabled over all media. The default for this policy setting allows operations over all media.
Network\Windows Connect Now 
Machine 
At least Windows Vista 
 HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!EnableRegistrars; HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!DisableUPnPRegistrar HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!DisableInBand802DOT11Registrar HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!DisableFlashConfigRegistrar HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!DisableWPDRegistrar HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!MaxWCNDeviceNumber HKLM\Software\Policies\Microsoft\Windows\WCN\Registrars!HigherPrecedenceRegistrar 
WindowsConnectNow.admx 
