Thanks for your reply. I have just a minimum of peripherique on my system like mouse, keyboard and two hard disk (Seagate ST2000DL003 and Samsung 830), that's it. I tested my memory with memtest and prime95 with no errors (GSKILL 2x4Gb GBXM).
On the other hand, i checked if i had errors in view log of windows and i found : "error id11 atapi", something like that. So i checked the health of my hard disk with "HDTune" and he said the cables are probably dead. So i changed the SATA cables with new cables.
Also, i will try your recommandations and let you know the results.
But in this problem, i have to wait a long time before restart my computer. It does not occurs on each boot and i saw it happen often time when i wait one night before restart my system.
Thanks all for your help.