This service delivers network notifications (e.g. interface addition/deleting etc) to user mode clients. Stopping this service will cause loss of network connectivity. If this service is disabled, any other services that explicitly depend on this service will fail to start. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\System Services!Network Store Interface Service (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\nsi!Start