Ecran bleu... résultat de Who crashed

Bonjour,
Depuis plusieurs semaines j'ai un sérieux problème avec ces fameux écran bleu,
Je suis nulle en informatique et j'ai fais quelques recherches sur internet, j'ai vu qu'il fallait installer "Who crashed" et ensuite faire une analyse.
J'ai donc fais cette analyse, mais je ne sais pas quoi faire après pour régler mon problème.

Je vous mets les résultats :
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Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

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On Fri 18/11/2011 07:34:20 GMT your computer crashed
crash dump file: C:\Windows\Minidump\Mini111811-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x7AA0E)
Bugcheck code: 0xA (0x3978B601, 0x1B, 0x1, 0xFFFFFFFF84676435)
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 which cannot be identified at this time.

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On Fri 18/11/2011 07:34:20 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x7AA0E)
Bugcheck code: 0xA (0x3978B601, 0x1B, 0x1, 0xFFFFFFFF84676435)
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 which cannot be identified at this time.
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Et la conclusion:

2 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.

Voilà j'espère qu'une personnes pourra m'aider.
Merci d'avance.