igfxtray.exe is a process which allows you to access the Intel Graphics configuration and diagnostic application for the Intel 810 series graphics chipset.
This program is a non-essential system process, and is installed for ease of use via the desktop tray.
Non-system processes like igfxtray.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues