Turn off Microsoft Peer-to-Peer Networking Services
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.
At least Windows XP Professional with SP2
Not Configured - No registry values are specified.
Disabled - Any values that would be created by the policy in the registry are deleted.
Enabled - Adding, modifying or delete values in the registry.
User Interface can be found in the Group Policy.
Please navigate to Computer Configuration - Policies - Administrative Templates - Network - Microsoft Peer-to-Peer Networking Services folder.