écran bleu et rédemarage

Bonjour

Je suis sous windows7 et mon portable n'arrête plus de planter avec écran bleu et redemarage intempestif, j'ai besoin d'aide svp

voici le rapport whoscrashed
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Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Wed 07/05/2014 10:08:20 GMT your computer crashed
crash dump file: C:\Windows\Minidump\050714-31387-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x9D847)
Bugcheck code: 0x7F (0xD, 0x0, 0x0, 0x0)
Error: UNEXPECTED_KERNEL_MODE_TRAP
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 Intel CPU generated a trap and the kernel failed to catch this trap.
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 that cannot be identified at this time.



On Wed 07/05/2014 10:08:20 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x9D847)
Bugcheck code: 0x7F (0xD, 0x0, 0x0, 0x0)
Error: UNEXPECTED_KERNEL_MODE_TRAP
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 Intel CPU generated a trap and the kernel failed to catch this trap.
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 that cannot be identified at this time.



On Tue 06/05/2014 19:46:48 GMT your computer crashed
crash dump file: C:\Windows\Minidump\050614-15272-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x19303)
Bugcheck code: 0xA (0xFFFFFFFFD13BF855, 0xF8, 0x1, 0xFFFFFFFF82AB0F4D)
Error: IRQL_NOT_LESS_OR_EQUAL
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 indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
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 a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.



On Tue 06/05/2014 02:49:28 GMT your computer crashed
crash dump file: C:\Windows\Minidump\050614-28282-01.dmp
This was probably caused by the following module: iastor.sys (iaStor+0x473A0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC000001D, 0xFFFFFFFF82870DA2, 0xFFFFFFFF8C694BBC, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\iastor.sys
product: Intel Matrix Storage Manager driver
company: Intel Corporation
description: Intel Matrix Storage Manager driver - ia32
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: iastor.sys (Intel Matrix Storage Manager driver - ia32, Intel Corporation).
Google query: Intel Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M



Conclusion

4 crash dumps have been found and analyzed. A third party driver has been identified to be causing system crashes on your computer. It is strongly suggested that you check for updates for these drivers on their company websites. Click on the links below to search with Google for updates for these drivers:

iastor.sys (Intel Matrix Storage Manager driver - ia32, Intel Corporation)

If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the query. This often yields interesting results from discussions from users who have been experiencing similar problems.


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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merci d'avance pour vos réponses :-)