symtray.exe is a process belonging to Norton Utilities which offers easy access to this range of products. "This program is a non-essential system process, and is installed for ease of use. "
Non-system processes like symtray.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