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Issue with MacHALDriver.sys on Windows 8

I recently installed Windows 8 Pro 64-bit, through Boot Camp, on my early 2011 MacBook Pro 15". I used the drives Apple provides for Windows 7. Everything works fine except I ocassionally get a BSOD. I had my dump files analyzed and the problem was with MacHalDriver.sys. More information from the dump file is available at this link: http://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/badpoolheade r-0x19-causing-bsod-on-windows-8/d6bafd0e-e759-4130-99fc-2f56a77d2d4a . Anyways I was wondering if anyone else was having this problem and if there was a solution to it.

MacBook Pro (15-inch Early 2011), Other OS

Posted on Oct 24, 2012 4:37 PM

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34 replies

Oct 26, 2012 5:51 AM in response to Subodh Adhikari

Subodh Adhikari wrote:


I recently installed Windows 8 Pro 64-bit, through Boot Camp, on my early 2011 MacBook Pro 15". I used the drives Apple provides for Windows 7. Everything works fine except I ocassionally get a BSOD. I had my dump files analyzed and the problem was with MacHalDriver.sys. More information from the dump file is available at this link: http://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/badpoolheade r-0x19-causing-bsod-on-windows-8/d6bafd0e-e759-4130-99fc-2f56a77d2d4a . Anyways I was wondering if anyone else was having this problem and if there was a solution to it.

"Everything works fine except I ocassionally get a BSOD."

BSOD is not normal. How can you say everything works fine? The issue is likely because there are no Windows 8 Bootcamp drivers. Some have said that the Windows 7 drivers work, others have said they do not.


Your Windows 8 installation is not "fine".

Oct 27, 2012 3:10 AM in response to fishffishstinks

FYI only, you are not alone. This is also affecting my early 2011 Macbook Pro 15". Same blue screen.


I have been running Windows 8 since the early release of RTM without issue. My machine started BSOD'ing around mid last week out of the blue.


I get BAD_POOL_ERROR as well as SYSTEM_SERVICE_EXCEPTION BSOD's. Typically when I first boot the computer and log in, I get a BSOD and it reboots. The second attempt throws up the error and then runs ok. It will no longer resume from sleep without BSOD'ing.


Memory and HDD tests return no faults and OSX runs without issue.


Looks like we are in need of a BootCamp update. I am very curious to know why it worked for some 6 weeks or so and just started out of the blue.

Oct 27, 2012 6:25 PM in response to Subodh Adhikari

I found a solution to my Bootcamp issue. My windows 8 install would crash once I tried changing the screen brightness either using the keyboard keys or trying to open up the bootcamp control panel. So I disabled the Generic PnP Monitor driver and I haven't had any issues since. I also put the Bootcamp.exe in windows 7 compatibility mode just in case. Edit: I also had the MacHALDriver.sys issue. This fixed it for me.

Oct 28, 2012 1:59 PM in response to Pre10der

How do you disable the Generic PnP Monitor driver or even reinstall the bootcamp drivers? I get the BSOD seconds after logging in so I'm wondering how this can be done.


Also, does anyone know how to start Windows in safe mode? I know it's shift + F8 but i'm not sure at what point i'm supposed to hit those keys.


many thanks.

Issue with MacHALDriver.sys on Windows 8

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