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Windows 7: Sudden BSOD, error 0x0000009f

01 Apr 2014   #1

Windows 7 Professionel 64-bit
Sudden BSOD, error 0x0000009f

Dear Sevenforums,

Recently a BSOD suddenly occured. I do not remember what I was doing when it came, but I think I was doing some word in Microsoft Word.

Error Code: 0x0000009f - DRIVER-POWER-STATE-FAILURE.

I just ran a memtest86+ test with 4 passes with both ram blocks installed - no errors shown. So I do not believe that it has something to do with the RAM's.

Will somebody dedicate some time to look into this issue?

Thank you in advance!

My System SpecsSystem Spec
01 Apr 2014   #2


If you do run memtest86 you should run it for at leats 8 passes. However I do not believe it is a RAM issue but rather a driver issue. It points to the HD audio bus which is wrong. You should enable Driver Verifer by following these instructions.

Driver Verifier - Enable and Disable
My System SpecsSystem Spec
02 Apr 2014   #3

Windows 7 Professionel 64-bit

Dear Thedoctor44,

I tried to enable Verifier.exe. Upon restart the computer crashed before I even had the chance to reach the Windows login screen.

I have attached the crashdump.
It should be noted that I run Windows 7 on a Macbook Pro - I don't know if that makes any difference in investigating what causes the crash.

I hope to hear from you.

Kind regards,
My System SpecsSystem Spec

02 Apr 2014   #4


I can't say I'm that familiar with how macs work but I can tell you the Hal driver for your Mac which is sued for windows is very outdated. Are you using boot camp to use windows? If so I suggest visiting this website and download the latest windows drivers for boot camp.

Apple - Support - Downloads

*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck D6, {fffff98013ca1004, 1, fffff8800755ded9, 0}

Unable to load image \??\C:\Windows\system32\drivers\MacHALDriver.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for MacHALDriver.sys
*** ERROR: Module load completed but symbols could not be loaded for MacHALDriver.sys

Could not read faulting driver name
Probably caused by : MacHALDriver.sys ( MacHALDriver+2ed9 )
My System SpecsSystem Spec

 Sudden BSOD, error 0x0000009f

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