Your friends minidump crashes at nv4_mini.sys. This is part of the Nvidia graphics card drivers. It has a bugcheck of EA.
0x000000EA: THREAD_STUCK_IN_DEVICE_DRIVER
A device driver problem has caused the system to pause indefinitely (hang). Typically, this is caused by a display driver waiting for the video hardware to enter an idle state. This might indicate a hardware problem with the video adapter, or a faulty video driver.
As you can see from the above. It can be caused by a faulty driver or a faulty graphics card.
You friend should start by updating the graphics drivers and seeing if that helps.