ERROR_KM_DRIVER_BLOCKED 0x8007078A

Error code 1930 · HRESULT 0x8007078A

WINDOWS

The printer driver is not compatible with a policy enabled on your computer that blocks NT 4.0 drivers.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_KM_DRIVER_BLOCKED is a Windows error code (system error 1930, returned as HRESULT 0x8007078A) reported by Windows. Its official message is: “The printer driver is not compatible with a policy enabled on your computer that blocks NT 4.0 drivers.”

How to fix ERROR_KM_DRIVER_BLOCKED

  1. Open Device Manager, look for yellow warnings and update or roll back the driver
  2. Disconnect and reconnect the hardware; test it on another USB port or machine
  3. Check the System event log for the device's error driver name

Related errors

RPC_S_GRP_ELT_NOT_REMOVEDERROR_CONTEXT_EXPIREDRPC_S_GRP_ELT_NOT_ADDEDERROR_SERVICE_DEPENDENCY_FAILERROR_DLL_INIT_FAILEDERROR_IO_DEVICEERROR_NOT_FOUNDERROR_CANCELLED

Source: Microsoft WinError.h

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