This setting turns off Microsoft Peer-to-Peer Networking Services in its entirety, and will cause all dependent applications to stop working. Peer-to-Peer protocols allow for applications in the areas of RTC, collaboration, content distribution and distributed processing. If you enable this setting, peer-to-peer protocols will be turned off. If you disable this setting or do not configure it, the peer-to-peer protocols will be turned on. Fix: (1) GPO: Computer Configuration\Administrative Templates\Network\Microsoft Peer-to-Peer Networking Services\Turn off Microsoft Peer-to-Peer Networking Services (2) REG: HKEY_LOCAL_MACHINE\Software\policies\Microsoft\Peernet!Disabled