BSOD help needed- usbport.sys & driver_irql_not_less_or_equal

By sotkoon
Aug 3, 2011
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  1. Hi,

    I have encountered BSOD on my laptop for the past few days. It is written USBPORT.sys issue. I have tried to update all drivers but the problem is still persistent.
    Can someone help to point out what is the problem? Attached are some of the minidump files.

    My machine is:
    Sony VGN-Z45GD
    Window vista business sp2
    Intel Core 2 Duo P8800@ 2.66GHz
    4Gb RAM
    64-bit OS

    Attached Files:

  2. Route44

    Route44 TechSpot Ambassador Posts: 11,965   +69

    What are your doing when these crashes occur?

    From where did you update your drivers?

    What USB devices do you have installed/use?

    Have you updated or installed any software recently?

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