Windows 7: Pleas help with BSOD

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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: fffffa80050e1060, Terminating object
Arg3: fffffa80050e1340, Process image file name
Arg4: fffff800029811e0, Explanatory message (ascii)

Debugging Details:
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KERNEL_LOG_EXIT_STATUS:  Exit Status 0

KERNEL_LOG_FAILING_PROCESS:  LogonUI.exe

PROCESS_OBJECT: fffffa80050e1060

IMAGE_NAME:  hardware_disk

DEBUG_FLR_IMAGE_TIMESTAMP:  0

FAULTING_MODULE: 0000000000000000 

PROCESS_NAME:  csrss.exe

EXCEPTION_RECORD:  fffff88005c38b38 -- (.exr 0xfffff88005c38b38)
ExceptionAddress: 0000000077b04e9f
   ExceptionCode: c0000006 (In-page I/O error)
  ExceptionFlags: 00000000
NumberParameters: 3
   Parameter[0]: 0000000000000000
   Parameter[1]: 000007fefdf0b028
   Parameter[2]: 00000000c000000e
Inpage operation failed at 000007fefdf0b028, due to I/O error 00000000c000000e

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.

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

CURRENT_IRQL:  0

ERROR_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.

EXCEPTION_PARAMETER1:  0000000000000000

EXCEPTION_PARAMETER2:  000007fefdf0b028

EXCEPTION_PARAMETER3:  00000000c000000e

IO_ERROR: (NTSTATUS) 0xc000000e - A device which does not exist was specified.

EXCEPTION_STR:  0xc0000006_c000000e

FAULTING_IP: 
+23a
00000000`77b04e9f ??              ???

BUGCHECK_STR:  0xF4_IOERR_C000000E

FOLLOWUP_IP: 
+23a
000007fe`fdf0b028 ??              ???

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: hardware_disk

STACK_COMMAND:  kb

FAILURE_BUCKET_ID:  X64_0xF4_IOERR_C000000E_IMAGE_hardware_disk

BUCKET_ID:  X64_0xF4_IOERR_C000000E_IMAGE_hardware_disk

Followup: MachineOwner