Need Help to Solve Windows Has Recovered from an unexpected shutdown

My PC

HP p6140d

Pentium(R) Dual-Core CPU

E5300 @ 2.60GHz

2GB

32-bit Operating System

Windows Home Vista Basic

I really need some help because my computer is crashing and I can't figure out the problem, ive tried to reformat my PC but it doesn't work, Please Help me.

Here are the screen shot of the error: 

http://s11.postimg.org/7m76tizab/error_1.jpg

http://s12.postimg.org/56sr841z1/error_2.jpg

http://s17.postimg.org/rr1127ar3/Error_3.jpg

here are the other one: 

I reacently got this screen shot:

Please Help to fix my computer.