Voilà depuis un moment, mon PC portable Toshiba plante ( écran bleu avec écriture blanche en anglais ).

J'ai donc installé WhoCrashed pour savoir d'où cela venait.

Voici donc une analyse du logiciel :

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System Information (local)
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computer name: ******
windows version: Windows 7 Service Pack 1, 6.1, build: 7601
windows dir: C:\Windows
CPU: AuthenticAMD AMD Sempron(tm) SI-42 AMD586, level: 17
1 logical processors, active mask: 1
RAM: 2951135232 total
VM: 2147352576, free: 1958461440

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Crash Dump Analysis
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Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Fri 22/06/2012 10:05:13 GMT your computer crashed
crash dump file: C:\Windows\Minidump\062212-71698-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7F1C0)
Bugcheck code: 0x7A (0xFFFFF6FC5003BC20, 0xFFFFFFFFC0000185, 0x347B5820, 0xFFFFF8A007784004)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Fri 22/06/2012 10:05:13 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrnlmp.exe (nt!KeBugCheckEx+0x0)
Bugcheck code: 0x7A (0xFFFFF6FC5003BC20, 0xFFFFFFFFC0000185, 0x347B5820, 0xFFFFF8A007784004)
Error: KERNEL_DATA_INPAGE_ERROR
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Thu 21/06/2012 14:46:52 GMT your computer crashed
crash dump file: C:\Windows\Minidump\062112-23181-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7CC40)
Bugcheck code: 0x3B (0xC0000005, 0x0, 0xFFFFF88002BF77F0, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Sat 29/10/2011 13:27:32 GMT your computer crashed
crash dump file: C:\Windows\Minidump\102911-25334-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7CC40)
Bugcheck code: 0x7A (0xFFFFF6FB800083F8, 0xFFFFFFFFC0000185, 0x3B403880, 0xFFFFF7000107FFF8)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Sat 24/09/2011 18:48:54 GMT your computer crashed
crash dump file: C:\Windows\Minidump\092411-23805-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7CC40)
Bugcheck code: 0x7A (0xFFFFF6FB80000000, 0xFFFFFFFFC000000E, 0x2F6AD880, 0xFFFFF70000000000)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Mon 28/03/2011 15:48:41 GMT your computer crashed
crash dump file: C:\Windows\Minidump\032811-23322-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0xF1C7C)
Bugcheck code: 0x7A (0xFFFFF6FC40009A38, 0xFFFFFFFFC000000E, 0x69CD8860, 0xFFFFF88001347C7C)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ntfs.sys
product: Système d’exploitation Microsoft® Windows®
company: Microsoft Corporation
description: Pilote du système de fichiers NT
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

On Thu 03/02/2011 20:57:59 GMT your computer crashed
crash dump file: C:\Windows\Minidump\020311-40139-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x153240)
Bugcheck code: 0x7A (0xFFFFF6FC40009B38, 0xFFFFFFFFC0000185, 0x9A057860, 0xFFFFF88001367240)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ntfs.sys
product: Système d’exploitation Microsoft® Windows®
company: Microsoft Corporation
description: Pilote du système de fichiers NT
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

On Wed 12/01/2011 13:02:05 GMT your computer crashed
crash dump file: C:\Windows\Minidump\011211-26364-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70740)
Bugcheck code: 0xF4 (0x3, 0xFFFFFA8003F9B910, 0xFFFFFA8003F9BBF0, 0xFFFFF800031985D0)
Error: CRITICAL_OBJECT_TERMINATION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a process or thread crucial to system operation has unexpectedly exited or been terminated.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Fri 17/12/2010 20:52:50 GMT your computer crashed
crash dump file: C:\Windows\Minidump\121710-63149-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0xF169C)
Bugcheck code: 0x7A (0xFFFFF6FC400098B0, 0xFFFFFFFFC0000185, 0x68686860, 0xFFFFF8800131669C)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ntfs.sys
product: Système d’exploitation Microsoft® Windows®
company: Microsoft Corporation
description: Pilote du système de fichiers NT
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

On Wed 15/12/2010 13:38:56 GMT your computer crashed
crash dump file: C:\Windows\Minidump\121510-33727-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0xF2DE4)
Bugcheck code: 0x7A (0xFFFFF6FC40009930, 0xFFFFFFFFC0000185, 0x13017860, 0xFFFFF88001326DE4)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ntfs.sys
product: Système d’exploitation Microsoft® Windows®
company: Microsoft Corporation
description: Pilote du système de fichiers NT
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

On Tue 28/09/2010 13:38:45 GMT your computer crashed
crash dump file: C:\Windows\Minidump\092810-22947-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70740)
Bugcheck code: 0x3B (0xC0000005, 0x100000002, 0xFFFFF880050B9B30, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Mon 26/07/2010 13:38:42 GMT your computer crashed
crash dump file: C:\Windows\Minidump\072610-27752-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0xF302C)
Bugcheck code: 0x7A (0xFFFFF6FC40009978, 0xFFFFFFFFC000000E, 0x2AB1D860, 0xFFFFF8800132F02C)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ntfs.sys
product: Système d’exploitation Microsoft® Windows®
company: Microsoft Corporation
description: Pilote du système de fichiers NT
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

On Sat 26/06/2010 19:35:39 GMT your computer crashed
crash dump file: C:\Windows\Minidump\062610-19812-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70600)
Bugcheck code: 0x3B (0xC0000005, 0x0, 0xFFFFF88007C10B30, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

On Thu 17/06/2010 17:08:50 GMT your computer crashed
crash dump file: C:\Windows\Minidump\061710-27846-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70600)
Bugcheck code: 0x7A (0xFFFFF6FC50001F00, 0xFFFFFFFFC000000E, 0xA847D880, 0xFFFFF8A0003E0630)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

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Conclusion
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14 crash dumps have been found and analyzed.
Read the topic general suggestions for troubleshooting system crashes for more information.

Note that it's not always possible to state with certainty whether a reported driver is actually responsible for crashing your system or that the root cause is in another module. Nonetheless it's suggested you look for updates for the products that these drivers belong to and regularly visit Windows update or enable automatic updates for Windows. In case a piece of malfunctioning hardware is causing trouble, a search with Google on the bug check errors together with the model name and brand of your computer may help you investigate this further.

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Voilà rien que dans le premier paragraphe, il me semble qu'il dise que ntoskrnl.exe est une source du problème. Sauf que d'après mes recherches, il est essentiel au PC. Je comprends pas trop là.

Merci d'avance

Tes crashs t'arrivent quand ?

Mets à jour tes drivers , fais une analyse anti-v et télécharges CCleaner et fais une analyse aussi , avec une recherche d'erreurs .

http://www.01net.com/telecharger/windows/Utilitaire/nettoyeurs_et_installeurs/fiches/32599.html

Regarde aussi si tes composants surchauffent pas !

Justement mes crashs arrivent n'importe quand. Défois je suis sur le PC des heures d'affilé et ca ne crash pas, et défois à peine je l'allume ca crash.

Sinon comme anti virus, Avast c'pas super je suppose ? Quand je fais mes analyses il ne me signale rien de suspect.

Normalement si c'est bon ...

Essaye à chaque fois qu'il crash , de noter ce que tu faisais à ce moment-là , quel programme était ouvert , etc ...

Pour voir la chaleur de tes composants , télécharge SpeedFan

Télécharge malwarbytes, tu l'installes, tu le lances et mise à jour puis scan rapide :
http://www.clubic.com/telecharger-fiche215092-malwarebytes-anti-malware.html
Tu as mis à jour windows 7, plus flash player, java ?
Le modéle de ton portable et la marque ?

C'un Toshiba satellite l300 il me semble.

Sinon non je n'ai rien mis à jour manuellement il me semble.

Donc là j'ai DL CCleaner, je vais DL après SpeedFan pour voir si c'est pas dû à une surchauffe et ensuite malwarbytes

Dll ce logiciel, les températures sont données :
http://www.cpuid.com/softwares/hwmonitor.html
Un memtest pour vérifier la ram.
http://www.clubic.com/telecharger-fiche10823-memtest86.html

http://fr.computers.toshiba-europe.com/innovation/download_drivers_bios.jsp?service=FR