Windows 10: BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL (L1C62x64.sys) Solved

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  1.    01 Aug 2015 #1



    i have a driver problem and its pointing to L1C62x64.sys the driver from the qualcomm atheros AR8171/8175 PCI-E gigabit Ethernet Controller (ndis 6.20) but i dont know how to fix it or if it realy is that driver.

    before windows 10 my pc was windows 7 home premium.

    i hope someone can help me if there are more questions then ask it to me.


    Attachment 27595
    Last edited by stefantje; 01 Aug 2015 at 16:59.
      My ComputerSystem Spec

  2. Posts : 1,628
    W7 Pro x64 | W10 IP x64 | Linux Mint VM
       01 Aug 2015 #2

    Your logs are completely empty, can you run the tool linked in the BSOD posting instructions and upload new logs.
      My ComputerSystem Spec

  3.    01 Aug 2015 #3

    now its full
      My ComputerSystem Spec

  4. Posts : 1,628
    W7 Pro x64 | W10 IP x64 | Linux Mint VM
       01 Aug 2015 #4

    Your Qualcomm Atheros 8171/8175 PCI-e Gigabit ethernet controller driver has been flagged. It coud do with updating, check here for an updated version.

    BugCheck D1, {0, 2, 0, fffff80064486c9b}
    *** WARNING: Unable to verify timestamp for L1C62x64.sys
    *** ERROR: Module load completed but symbols could not be loaded for L1C62x64.sys
    Probably caused by : L1C62x64.sys ( L1C62x64+6c9b )
    1: kd> lmvm L1C62x64
    start             end                 module name
    fffff800`64480000 fffff800`644a2000   L1C62x64 T (no symbols)           
        Loaded symbol image file: L1C62x64.sys
        Image path: \SystemRoot\System32\drivers\L1C62x64.sys
        Image name: L1C62x64.sys
        Timestamp:        Tue Jul 16 07:56:44 2013 (51E4EEAC)
        CheckSum:         0002912C
        ImageSize:        00022000
        Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

    This driver is Agnitum Firewall driver, it's used by Bullguard.

    ffffd000`2a580228  fffff800`620a2800Unable to load image \SystemRoot\system32\DRIVERS\afw.sys, Win32 error 0n2
    *** WARNING: Unable to verify timestamp for afw.sys
    *** ERROR: Module load completed but symbols could not be loaded for afw.sys

    Uninstall Bullguard and use native Defender coupled with MalwareBytes.

    Note   Note
    Make sure you uncheck the 'Enable Free Trial' box when installing.

    Attachment 27600

    1. Uninstall Daemon Tools via Add/Remove Programs.
    2. Download the SPTD standalone installer and perform the following steps.
    3. Double click the executable to open it.
    4. Click the button shown below.

    information   Information
    If the button it is grayed out as shown in the image, there is no more SPTD installation on your system and you can just close the window.
      My ComputerSystem Spec

  5.    01 Aug 2015 #5

    i wil try it tomorrow hope it wil work thanks :)
      My ComputerSystem Spec

  6. Posts : 1,628
    W7 Pro x64 | W10 IP x64 | Linux Mint VM
       01 Aug 2015 #6

    Hopefully that will cure the issues, keep us posted.
      My ComputerSystem Spec

  7.    02 Aug 2015 #7

    there was no update for it i have reinstalled it now i get

    i have made a new check in the zip

    i have deinstalt BG and Deamon and installed anti malware
      My ComputerSystem Spec

  • Posts : 1,628
    W7 Pro x64 | W10 IP x64 | Linux Mint VM
       03 Aug 2015 #8

    It's the Atheros driver again, not sure why it's showing a different number reference maybe it's just part of the same driver package.

    Make a Restore Point and try the AR8171 Windows 8 driver from here.
      My ComputerSystem Spec

  •    03 Aug 2015 #9

    i saw that number but a log says mrxsmb20.sys is the problem
      My ComputerSystem Spec

  • Posts : 1,628
    W7 Pro x64 | W10 IP x64 | Linux Mint VM
       03 Aug 2015 #10

    I didn't see that driver anywhere in the dumps. That's a Windows driver so it's probably a false positive.
      My ComputerSystem Spec

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