This device cannot start. (Code 10)

  • MonoMake shows "Mono is not connected" and the device manager shows the USB UART has a problem which is reported as "This device cannot start. (Code 10)"
    This device cannot start. (Code 10)

    I have tried uninstalling and reinstalling but it makes no difference.

    My Windows 7 PC system specifications can be seen here:

    Any ideas as to how this could be fixed?

  • Hi @walkerm88,

    I don't know why this happens. However, I have some suggestions of course.

    First a little background on Mono serial port and drivers. On Windows we do not use any third-party driver - not even Cypress' driver. What we do is install a INF file that specify our USB CDC Serial port with the systems default USB CDC driver - which is provided by Microsoft.

    In the Device Manager you should be able to confirm that by clicking the tab Driver, like this one:

    Driver details example

    The driver provider should be Microsoft - not cypress or anything else.

    If not, you can try our dedicated driver installer package (that installs the INF file) here.

    I hope inspecting the driver configuration in device manager sheds some light on the issue.

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