Windows 10: Driver_Irql_not_less_or_equal kbdclass.sys system error, Windows 10

Discus and support Driver_Irql_not_less_or_equal kbdclass.sys system error, Windows 10 in Windows 10 Drivers and Hardware to solve the problem; I have recently been getting a Driver_Irql_not_less_or_equal kbdclass.sys system error BSOD when using my computer while playing games. I did not have... Discussion in 'Windows 10 Drivers and Hardware' started by ZRSupreme, Jun 18, 2020.

  1. ZRSUPREME
    ZRSupreme Win User

    Driver_Irql_not_less_or_equal kbdclass.sys system error, Windows 10


    I have recently been getting a Driver_Irql_not_less_or_equal kbdclass.sys system error BSOD when using my computer while playing games. I did not have any peripherals attached that were not attached before the issue started. I am using the Integrated keyboard on my Sager NP8358F2 laptop. I have tried updating Keyboard Drivers and looked through multiple solutions that have helped other people with similar issues I tried windows memory diagnostic which told me nothing was wrong. I tried sfc/scannow in CMD. I am kind of stumped.

    :)
     
    ZRSupreme, Jun 18, 2020
    #1
  2. POORNIMAVENKATAPPA
    PoornimaVenkatappa Win User

    driver_irql_not_less_or_equal (neofltr_719_20893.sys) windows 10

    Hi,

    Suddenly my laptop is showing this blue screen error

    driver_irql_not_less_or_equal (neofltr_719_20893.sys)

    I have recently upgraded it to windows 10 from Windows 7 home premium
     
    PoornimaVenkatappa, Jun 18, 2020
    #2
  3. JOY KEMPRAI
    Joy Kemprai Win User
    BSOD - driver_irql_not_less_or_equal (l1c63x64.sys)

    Hi Seung,

    Sorry for the inconvenience caused by BSOD - driver_irql_not_less_or_equal (l1c63x64.sys).

    Please let us know the make/model of your computer.

    The L1C63x64.sys is the Atheros LAN driver and I would suggest to uninstall and reinstall the Atheros LAN driver but install the latest Atheros LAN driver by visiting the manufacture's website and avoid using any LAN driver available though Windows Update.

    However the problem could also be with any VPN software and other software so make sure you have the latest version of each of these software.

    If the errors continue uninstall the VPN software and check if the issue persist.

    Hope this helps. Get back to us for further queries for BSOD - driver_irql_not_less_or_equal (l1c63x64.sys). We are happy to help!
     
    Joy Kemprai, Jun 18, 2020
    #3
  4. KARBEAPEA_21
    Karbeapea_21 Win User

    Driver_Irql_not_less_or_equal kbdclass.sys system error, Windows 10

    Driver_IRQL_not_less_or_equal netwtw02.sys

    Hi,

    I am using a Dell Iinspiron series 13-7000 with Windows 10, x64-based PC, Processor Intel Core i5-6200U. I had the Driver_IRQL_not_less_or_equal (netwtw02.sys) error and then a second crash with system_thread_exception_not_handled (netwtw02.sys)

    Suddenly the computer seems too slow and characters are taking a while in appearing when I type.... help please!
     
    Karbeapea_21, Jun 18, 2020
    #4
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Driver_Irql_not_less_or_equal kbdclass.sys system error, Windows 10

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