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kbdclass.sys

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The kbdclass.sys file is a Windows system driver for keyboard class devices. In discussions on WindowsForum.com, users report that this driver can cause a Blue Screen of Death (BSOD) with the error DRIVER_IRQL_NOT_LESS_OR_EQUAL when a key is pressed. This issue often arises after connecting a new USB keyboard or mouse, and may be related to driver conflicts or outdated drivers. While updating drivers with tools like Driver Booster can temporarily resolve the problem, the BSOD may return after a restart. Troubleshooting steps typically involve checking for driver updates, removing conflicting drivers, or performing a clean boot to isolate the cause.
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    Windows 7 New keyboard gives a BSOD on pressing a key

    I recently bought a new USB keyboard (GK-004 Silvio) and a new USB Mouse (Dragon War Thor), and I seem to be experiencing BSODs with my new keyboard. (had been using PS/2 keyboard and mouse before with no problems till date). I then updated all of my drivers using Driver Booster, and the problem...
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    • Thread
    • bsod corrupted files driver issues driver update error error message hardware kbdclass.sys keyboard issues minidump safe mode sfc scan spyrix tech support troubleshooting usb usb keyboard virus scan windows 10 wireless
    • Replies: 24
    • Forum: Windows Blue Screen of Death (BSOD)
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