BSOD WinDBG

Bonjour,
Mon PC plante très souvent et il apparait quelques fois un écran bleu, j'ai donc suivi quelques tuto pour le traquer avec WinDBg et voilà ce que j'obtient dans le rapport

Loading Dump File [C:\Windows\MEMORY.DMP]
Kernel Summary Dump File: Only kernel address space is available

Symbol search path is: srv*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows Longhorn Kernel Version 7600 MP (4 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16539.x86fre.win7_gdr.100226-1909
Kernel base = 0x83010000 PsLoadedModuleList = 0x83158810
Debug session time: Tue May 25 14:19:15.581 2010 (GMT+2)
System Uptime: 0 days 0:02:17.765
Loading Kernel Symbols
.....................................................................................................................................................
Loading unloaded module list
......
Loading User Symbols
PEB is paged out (Peb.Ldr = 7ffd500c). Type ".hh dbgerr001" for details
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* *
* Bugcheck Analysis *
* *
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Use !analyze -v to get detailed debugging information.

BugCheck 12, {2, 8001003b, 0, 0}

Probably caused by : ntkrpamp.exe ( nt!KiTrap07+33d )

Followup: MachineOwner
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2: kd> !analyze -v
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* *
* Bugcheck Analysis *
* *
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TRAP_CAUSE_UNKNOWN (12)
Arguments:
Arg1: 00000002, Unexpected interrupt.
Arg2: 8001003b, Unknown floating point exception.
Arg3: 00000000, The enabled and asserted status bits (see processor definition).
Arg4: 00000000

Debugging Details:
------------------

OVERLAPPED_MODULE: rdbss

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0x12

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from 3014e80d to 830555b5

STACK_TEXT:
9de0bd34 3014e80d badb0d00 00000000 00000000 nt!KiTrap07+0x33d
WARNING: Frame IP not in any known module. Following frames may be wrong.
11aaec64 00000000 00000000 00000000 00000000 0x3014e80d

FOLLOWUP_IP:
nt!KiTrap07+33d
830555b5 ebef jmp nt!KiTrap07+0x32e (830555a6)

SYMBOL_STACK_INDEX: 0

FOLLOWUP_NAME: MachineOwner

SYMBOL_NAME: nt!KiTrap07+33d

MODULE_NAME: nt

IMAGE_NAME: ntkrpamp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 4b88cacf

STACK_COMMAND: kb

FAILURE_BUCKET_ID: 0x12_nt!KiTrap07+33d

BUCKET_ID: 0x12_nt!KiTrap07+33d

Followup: MachineOwner
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Pourriez vous m'aider à trouver le problème et à le résoudre ?