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Code 43 - CM_PROB_FAILED_POST_START

  • Article

This Device Manager error message indicates that a driver has reported a device failure.

Error Code

43

Display Message

"Windows has stopped this device because it has reported problems. (Code 43)"

Uninstall and reinstall the device.

One of the drivers controlling the device told the operating system the device failed in some manner in response to IRP_MN_QUERY_PNP_DEVICE_STATE.

For driver developers

A driver invalidated the device state of the device and in the resulting query device state the device stack reported PNP_DEVICE_FAILED.

If the driver is a WDF driver, the reporting of the device as failed may be indirectly caused by the WDF driver calling WdfDeviceSetFailed or returning an error from a WDF callback. For more info, see Reporting Device Failures.