My work computer recently hanged when shutting down to sleep mode.

When booting the computer the next day I realized that it had eventually crashed.

This happened again after disabling hyper-threading, so I decided to investigate.


Checked Event Viewer and found:

Log Name: System
Source: Microsoft-Windows-WER-SystemErrorReporting
Event ID: 1001
Task Category: None
Level: Error
Keywords: Classic
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000009f (0x0000000000000003, 0xfffffa800cd5e060, 0xfffff80000b9a3d8, 0xfffffa802e232590). A dump was saved in: C:\Windows\MEMORY.DMP.


Searched online for BSOD 0x0000009f and found:



Examined the memory dump with WinDbg (x64).

Checked for details about the crash with:

!analyze -v

Part of the result:

A driver has failed to complete a power IRP within a specific time.
Arg1: 0000000000000003, A device object has been blocking an Irp for too long a time
Arg2: fffffa800cd5e060, Physical Device Object of the stack
Arg3: fffff80000b9a3d8, nt!TRIAGE_9F_POWER on Win7 and higher, otherwise the Functional Device Object of the stack
Arg4: fffffa802e232590, The blocked IRP


BUCKET_ID: X64_0x9F_3_POWER_DOWN_Rt64win7_IMAGE_pci.sys

FAILURE_ID_HASH_STRING: km:x64_0x9f_3_power_down_rt64win7_image_pci.sys


Checked for information about the I/O request packet with:

!irp fffffa802e232590


Irp is active with 5 stacks 4 is current (= 0xfffffa802e232738)
No Mdl: No System Buffer: Thread 00000000: Irp stack trace.
cmd flg cl Device File Completion-Context
[ 0, 0] 0 0 00000000 00000000 00000000-00000000

Args: 00000000 00000000 00000000 00000000
[ 0, 0] 0 0 00000000 00000000 00000000-00000000

Args: 00000000 00000000 00000000 00000000
[ 0, 0] 0 0 00000000 00000000 00000000-00000000

Args: 00000000 00000000 00000000 00000000
>[ 16, 2] 0 e1 fffffa800da84050 00000000 fffff800032ca230-fffffa800eb3bb50 Success Error Cancel pending
*** ERROR: Module load completed but symbols could not be loaded for Rt64win7.sys
\Driver\RTL8167 nt!PopSystemIrpCompletion
Args: 00015400 00000000 00000005 00000003
[ 0, 0] 0 0 00000000 00000000 00000000-fffffa800eb3bb50

Args: 00000000 00000000 00000000 00000000


Examined available information about Rt64win7 with:

lmvm Rt64win7


start end module name
fffff880`05c3a000 fffff880`05d39000 Rt64win7 (no symbols)
Loaded symbol image file: Rt64win7.sys
Image path: \SystemRoot\system32\DRIVERS\Rt64win7.sys
Image name: Rt64win7.sys
Timestamp: Fri Oct 07 11:27:12 2016 (57F76A70)
CheckSum: 0010CDA5
ImageSize: 000FF000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4


Found the driver file in Windows explorer under:


Then checked Properties. The details view confirmed that the driver was for the Realtek network interface card, version: 7.103.1007.2016.


Decided to look for a newer driver from Realtek.

Found, downloaded and installed the current latest version 7.109.

Unfortunately this was not the solution, the problems continued.

However, later on I discovered that adjusting power options seemed effective.