Problem Event Name: Bluescreen

Hi,
I would suggest you to uninstall McAfee and ThreatFire (PC Tools) then replace them with MSE.
Then we'll see if the problem persist.
http://www.microsoft.com/security_essentials/

Also install / update Windows SP1.

Code:

Windows 7 Kernel Version 7600 MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Machine Name:
Kernel base = 0xfffff800`0325e000 PsLoadedModuleList = 0xfffff800`0349be50
Debug session time: Thu Mar 10 18:05:03.665 2011 (GMT-8)
System Uptime: 0 days 0:02:51.615
Loading Kernel Symbols
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Loading User Symbols
Loading unloaded module list
....
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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck F4, {3, fffffa800567e440, fffffa800567e720, fffff800035d72d0}

Probably caused by : csrss.exe

Followup: MachineOwner
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0: kd> !analyze -v
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*                        Bugcheck Analysis                                    *
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CRITICAL_OBJECT_TERMINATION (f4)
A process or thread crucial to system operation has unexpectedly exited or been
terminated.
Several processes and threads are necessary for the operation of the
system; when they are terminated (for any reason), the system can no
longer function.
Arguments:
Arg1: 0000000000000003, Process
Arg2: fffffa800567e440, Terminating object
Arg3: fffffa800567e720, Process image file name
Arg4: fffff800035d72d0, Explanatory message (ascii)

Debugging Details:
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PROCESS_OBJECT: fffffa800567e440

IMAGE_NAME:  csrss.exe

DEBUG_FLR_IMAGE_TIMESTAMP:  0

MODULE_NAME: csrss

FAULTING_MODULE: 0000000000000000 

PROCESS_NAME:  csrss.exe

EXCEPTION_CODE: (NTSTATUS) 0xc0000006 - The instruction at 0x%p referenced memory at 0x%p. The required data was not placed into memory because of an I/O error status of 0x%x.

BUGCHECK_STR:  0xF4_IOERR

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`07fe4b08 fffff800`0365af62 : 00000000`000000f4 00000000`00000003 fffffa80`0567e440 fffffa80`0567e720 : nt!KeBugCheckEx
fffff880`07fe4b10 fffff800`03602a23 : ffffffff`ffffffff fffffa80`0542a570 fffffa80`0567e440 fffffa80`0567e440 : nt!PspCatchCriticalBreak+0x92
fffff880`07fe4b50 fffff800`0358a90c : ffffffff`ffffffff 00000000`00000001 fffffa80`0567e440 00000000`00000008 : nt! ?? ::NNGAKEGL::`string'+0x17666
fffff880`07fe4ba0 fffff800`032cd993 : fffffa80`0567e440 fffff880`c0000006 00000000`00b5fac0 fffffa80`0542a570 : nt!NtTerminateProcess+0x20c
fffff880`07fe4c20 00000000`7711f97a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`00b5c318 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7711f97a


STACK_COMMAND:  kb

FOLLOWUP_NAME:  MachineOwner

FAILURE_BUCKET_ID:  X64_0xF4_IOERR_IMAGE_csrss.exe

BUCKET_ID:  X64_0xF4_IOERR_IMAGE_csrss.exe

Followup: MachineOwner
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