If the Device Loader service can be successfully stopped and started again, the issue may be related to the driver you have installed. You may try resetting your NI MAX Configuration Data to resolve this issue. If possible, use another USB DAQ device in the affected system, or the same USB DAQ device in a known working system to determine where the problem is. If you have recently tried to connect your USB DAQ device to NI MAX running on a virtual machine, there is a chance your host machine may have entered into a damaged state, resulting in the USB DAQ device appearing as USB Firmware Updater within NI MAX. You may also try resetting the NI MAX Configuration Data or connecting the USB device into another machine with DAQmx and NI MAX to see if the issue resolves. In general, NI hardware is not supported on virtual machines.
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