I would need more information in regards to your system configuration:
Which version of Windows do you have?
Also, the exact processor model and the graphics controller:
Click the Windows icon, and then right-click Computer .
Select Properties .
Find System Type on the Properties window, and then note the processor model.
Windows 8.1, Intel Core i7-4712HQ CPU 2.30GHz with 16 GB RAM. 64-bit mode.
Graphics controller is Intel HD Graphics 4600 with Intel Video BIOS. Resolution is 3840x2160 (4k display.)
Thanks for the information.
In this particular situation and since the igfxtray.exe fault 0xc0000005 is showing up, I suggest uninstalling the current graphics driver, testing the system with windows* graphics driver and then proceed to download and reinstall the latest driver from here Download Intel® Graphics Driver for Windows 7/8.1* [15.36] ,
Please provide you graphics report Graphics Drivers — Intel® Graphics Driver Report