Memory dump during Media Player 10 install

ok ive been fooling with this for way to long... recently i developed a "
cannot create direct show player" while attempting to view video clips online *newest version of firefox* ....anyhow read some articles.. reinstalled directx and attempted to install media player 10.... while installing mp10 it gets to about 61% each time then i get the blue screen with the memdump error

Stop : 0x0000008E (0xC0000005, 0x8056E2A2, 0xB89B4AE8, 0x00000000)

so i did what i knew and checked the dump file but i have no idea what any of it meas...


Microsoft (R) Windows Debugger Version 6.5.0003.7
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\WINDOWS\Minidump\Mini010506-02.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows XP Kernel Version 2600 (Service Pack 2) UP Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 2600.xpsp_sp2_gdr.050301-1519
Kernel base = 0x804d7000 PsLoadedModuleList = 0x8055a420
Debug session time: Thu Jan 5 23:13:11.177 2006 (GMT-5)
System Uptime: 0 days 0:07:02.757
Loading Kernel Symbols
..........................................................................................................................
Loading unloaded module list
..........
Loading User Symbols
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1000008E, {c0000005, 8056e2a2, b98e6ba4, 0}

Probably caused by : ntoskrnl.exe ( nt!HvpGetCellMapped+5f )

Followup: MachineOwner
---------

kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

KERNEL_MODE_EXCEPTION_NOT_HANDLED_M (1000008e)
This is a very common bugcheck. Usually the exception address pinpoints
the driver/function that caused the problem. Always note this address
as well as the link date of the driver/image that contains this address.
Some common problems are exception code 0x80000003. This means a hard
coded breakpoint or assertion was hit, but this system was booted
/NODEBUG. This is not supposed to happen as developers should never have
hardcoded breakpoints in retail code, but ...
If this happens, make sure a debugger gets connected, and the
system is booted /DEBUG. This will let us see why this breakpoint is
happening.
Arguments:
Arg1: c0000005, The exception code that was not handled
Arg2: 8056e2a2, The address that the exception occurred at
Arg3: b98e6ba4, Trap Frame
Arg4: 00000000

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


EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

FAULTING_IP:
nt!HvpGetCellMapped+5f
8056e2a2 8b4304 mov eax,[ebx+0x4]

TRAP_FRAME: b98e6ba4 -- (.trap ffffffffb98e6ba4)
ErrCode = 00000000
eax=00001ff0 ebx=00001ff0 ecx=8225bfe0 edx=00000067 esi=e17edb60 edi=00000fff
eip=8056e2a2 esp=b98e6c18 ebp=b98e6c60 iopl=0 nv up ei pl zr na po nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010246
nt!HvpGetCellMapped+0x5f:
8056e2a2 8b4304 mov eax,[ebx+0x4] ds:0023:00001ff4=????????
Resetting default scope

CUSTOMER_CRASH_COUNT: 2

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0x8E

LAST_CONTROL_TRANSFER: from 80579058 to 8056e2a2

STACK_TEXT:
b98e6c60 80579058 e17edb60 0cffffff e17edb60 nt!HvpGetCellMapped+0x5f
b98e6c74 80578ed3 e17edb60 0cffffff c438082c nt!HvpGetHCell+0x10
b98e6c90 80599b9e e17edb60 0cffffff e17edb60 nt!HvMarkCellDirty+0x30
b98e6cb0 80590c8d e17edb60 0013f828 e10e2368 nt!CmpMarkKeyDirty+0x68
b98e6cc8 80590dad e17edb60 0013f828 00000001 nt!CmpFreeKeyByCell+0x14
b98e6cf8 80591025 e3946c48 b98e6d64 00beeca0 nt!CmDeleteKey+0x8c
b98e6d58 804de7ec 00000552 00beecc8 7c90eb94 nt!NtDeleteKey+0x138
b98e6d58 7c90eb94 00000552 00beecc8 7c90eb94 nt!KiFastCallEntry+0xf8
WARNING: Frame IP not in any known module. Following frames may be wrong.
00beecc8 00000000 00000000 00000000 00000000 0x7c90eb94


FOLLOWUP_IP:
nt!HvpGetCellMapped+5f
8056e2a2 8b4304 mov eax,[ebx+0x4]

SYMBOL_STACK_INDEX: 0

FOLLOWUP_NAME: MachineOwner

SYMBOL_NAME: nt!HvpGetCellMapped+5f

MODULE_NAME: nt

IMAGE_NAME: ntoskrnl.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 42250ff9

STACK_COMMAND: .trap ffffffffb98e6ba4 ; kb

FAILURE_BUCKET_ID: 0x8E_nt!HvpGetCellMapped+5f

BUCKET_ID: 0x8E_nt!HvpGetCellMapped+5f

Followup: MachineOwner
---------

Hi,

Form the stack trace, I believe that it is software hive corruption. Use regedit to repair the software hive.

b98e6c60 80579058 e17edb60 0cffffff e17edb60 nt!HvpGetCellMapped+0x5f
b98e6c74 80578ed3 e17edb60 0cffffff c438082c nt!HvpGetHCell+0x10