ngserver.exe is a process belonging to Symantec Ghost and offers additional functions to this disk imaging software. "This program is a non-essential process, but should not be terminated unless suspected to be causing problems. "
Non-system processes like ngserver.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you
check your registry to identify slowdown issues.