Windows 7 blue screen error

Hello,

I have a ddr1 Pentium 4 pc which contains 2 gb of ram 80 gb hard 2.8 ghz processor and 512 mb nvidia 8400 gs graphics card with Windows xp installed

The problem is that I installed just cause 2 on it and it asked for d3d11.dll I went looking on some threads and I found jc2 needed windows 7 so I installed Windows 7 on my computer and installed jc2 but when I ran the game a blue screen appeared with something written on it it scrolled down instantly I wasn't able to read anything but the last line which said beginning dump of physical memory 10 percent, 20 percent 30 percent and so on till 100 percent I have this problem and it will be very kind if you can tell me its solution.
Thanx :-)