Windows XP SP3 crashing, need help!

My PC crashes at irregular intervals (2 days in a row then fine for a week). I followed the instructions for viewing the dump information and I'm including it here.

Loading Dump File [C:\WINDOWS\Minidump\Mini110509-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: C:\WINDOWS\Symbols
Executable search path is:
Unable to load image ntoskrnl.exe, Win32 error 0n2
*** WARNING: Unable to verify timestamp for ntoskrnl.exe
Windows XP Kernel Version 2600 (Service Pack 3) MP (2 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Machine Name:
Kernel base = 0x804d7000 PsLoadedModuleList = 0x8055d720
Debug session time: Thu Nov 5 13:38:24.203 2009 (GMT+2)
System Uptime: 0 days 0:01:55.983
Unable to load image ntoskrnl.exe, Win32 error 0n2
*** WARNING: Unable to verify timestamp for ntoskrnl.exe
Loading Kernel Symbols
...............................................................
................................................................
.....
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 C2, {7, cd4, 2100006, 887a65f8}

Probably caused by : ntoskrnl.exe ( nt!_woutput+414 )

Followup: MachineOwner
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0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

BAD_POOL_CALLER (c2)
The current thread is making a bad pool request. Typically this is at a bad IRQL level or double freeing the same allocation, etc.
Arguments:
Arg1: 00000007, Attempt to free pool which was already freed
Arg2: 00000cd4, (reserved)
Arg3: 02100006, Memory contents of the pool block
Arg4: 887a65f8, Address of the block of pool being deallocated

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


POOL_ADDRESS: 887a65f8

FREED_POOL_TAG: Cnn.

BUGCHECK_STR: 0xc2_7_Cnn.

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

PROCESS_NAME: svchost.exe

LAST_CONTROL_TRANSFER: from 00000000 to 804f9f43

STACK_TEXT:
b3ac54bc 00000000 00000000 00000000 00000000 nt!_woutput+0x414


STACK_COMMAND: kb

FOLLOWUP_IP:
nt!_woutput+414
804f9f43 5d pop ebp

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: nt!_woutput+414

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

IMAGE_NAME: ntoskrnl.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 498c114b

FAILURE_BUCKET_ID: 0xc2_7_Cnn._nt!_woutput+414

BUCKET_ID: 0xc2_7_Cnn._nt!_woutput+414

Followup: MachineOwner

Apparently the problem is with ntoskrnl.exe which from what I've gathered is the kernel image for Windows NT. I Googled it but I couldn't find anything relevant with my particular problem. Could someone help me with this? Thanks!

 

Get a copy of XP SP3 or with SP3 slipstreamed and run

the sytem file checker

Start>run>typein

cmd

type the following into the black dialog box that opens

sfc /scannow

Notice the double n in scannow

Type exit when finished.

Do not try this without an SP3 disk.

 

I get the following message:

Windows File Protection could not initiate a scan of protected system files

The specific error code is 0x000006ba [The RPC server is unavailable.].

 

I'm bringing this topic back up because I never got a clear answer on it. Can anyone help please?

 

RPC might not be running or if it is, one of the services it depends on it not running. http://www.theeldergeek.com/remote_procedure_call_(rpc).htm

Go here: http://www.blackviper.com/WinXP/servicecfg.htm
and compare your services to the SAFE column.
Change anything that needs to be changed.

 

Thanks plodr, but how do I go about actually changing it (if it needs changing)?

 

You just double click on the said service and a menu box will appear allowing you to enable/disable as well as start/stop the service.

You can also try dialafix:
http://majorgeeks.com/downloadget.php?id=4899&file=15&evp=7d21ae5c611baf9a52b1750805534dda

Can you run the SFC fix in safe mode maybe?

And here is some more information on that error.
http://www.computerhope.com/issues/ch000646.htm