Manages shadow copy of file shares taken by the VSS file server agent. If this service is stopped, file share shadow copies cannot be managed. If this service is disabled, any services that explicitly depend on it will fail to start. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\System Services!Microsoft File Server Shadow Copy Agent Service (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\fssagent!Start