driver_irql_not_less_or_equal (mwlu97w8x64.sys) ----> what does this mean?

Anonymous
2013-12-15T19:57:51+00:00

I bought Surface Pro 2 recently. It is a brand new computer. All I have done is to use it doing homework, watching videos. 

But it happened several time recently, I am doing nothing, just letting it on.  it suddenly crashed and let me search for  "driver_irql_not_less_or_equal (mwlu97w8x64.sys)". what does this mean?

Surface | Surface Pro | Network

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Anonymous
2014-09-05T18:06:48+00:00

Hi allenyw80,

Thank you for the reply. I understand you are having the same issue on your replacement device and I know this is a frustrating situation for you. I'm here to guide you in the right direction. 

Please try the following:

  1. Back up your files.
  2. Do a reset.
  3. Go to Charms>Settings>PC settings>One Drive>Sync Settings>Turn off Sync your settings on this PC. This step will isolate the settings from other computers that might affect your Pro 2.
  4. Install all updates.
  5. Install your apps back one by one to see if the problem comes back with certain apps.
  6. If the problem continues, please contact our Support.

Best Regards,

Clare

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  1. Anonymous
    2014-08-11T09:31:42+00:00

    Hello,

    same problem reported here on Surface 2 Pro, very annoying...

    It seems to occur mainly when I do some file management (upload/download) with my NAS over wifi, so the wifi driver seems to be clearly faulty...

    Microsoft, please do something...

    Thank you!

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  2. Anonymous
    2014-08-05T21:10:21+00:00

    Hello TrymSjøberg

    With continued research, this error is pointing to the wireless card.  Have you ensured that yours is running the latest driver?

    Best regards

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  3. Anonymous
    2014-08-03T13:54:51+00:00

    My Surface Pro 2 also crashes daily with the mwlu97w8x64.sys BSOD when I am connected to Eduroam at my university.

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  4. Anonymous
    2014-07-15T15:07:12+00:00

    It also keeps happening to me on my Surface Pro 2, but only when I'm using my microsoft surface bluetooth mouse while on my university network, which runs on Eduroam. At home, I don't get any bluescreen even when I'm using the mouse, but the connection keeps dropping to "Limited Connectivity" randomly. It seems there's clearly a problem with the WiFi driver of the surface pro 2.

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