continuation of the 1st part 1. igfxpers.exe - is a process installed alongside NVidia graphics cards and provides additional configuration options for these devices. "This program is a non-essential process, but should not be terminated unless suspected to be causing problems." processlibrary.com says its not a critical component. so there's nothing to worry about 2. igfxsrvc.exe - is a process associated with Intel(R) Common User Interface from Intel Corporation. It is installed with graphic card drivers with Intel chipsets. This program is important for the stable and secure running of your computer and should not be terminated. from processlibrary.com i wouldn't want to terminate this. 3. 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. also ...