how to fix blue screen?

[pouni3]

hie my computer crash a lot, then i put some files here, if someone can help me please, i lost some files Unregistered and it's starting to annoy me. i had check every forum but i stay with the same problem.
i'm french so i try to express myself the best. waiting for some help thank's.
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[tehsaccade]

All of those system service exceptions suggest that it would be a good idea to start with a memory test and test on your computer's RAM.

I have seen detailed instructions on this very site, about how to do this, if you search also

 

[Layback Bear]

If you interested here is a tutorial.

http://www.sevenforums.com/tutorials/105647-ram-test-memtest86.html

 

[pouni3]

already thank you for your answer. I recently tested my memory with memtest86,but nothing was found, i also update all my driver. blue screen aigain ... I have windows 7 titan, an unofficial version, and I wonder if the problem comes from this.