igfxtray.exe is a task bar process that points to the Intel® Common User Interface, known also as the Intel Graphics Accelerator. The process allows the user to modify settings tied to the monitor and graphics, including screen rotation, hot keys and extended desktop settings. Being a legitimate process of Intel, it is recommended not to close off igfxtray manually through the Task Manager. If the application is hidden in the task bar, you can access the options and settings under the Control Panel, generally under the name 'Intel® Graphics and Media'. If trying to open the application generates the message 'GfxUI has stopped working', the solution to this problem would be to re-install the graphics driver through the vendor's motherboard media (CD or DVD).