3: Troubleshooting
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3. Locate the unknown device (marked with a large question mark). Right-click on the Unknown
Device listing and select the Uninstall or Remove option.
4. Click the OK button to continue. A warning box appears confirming the removal of the Unknown
Device. Click the OK button to confirm the device removal.
5. Disconnect the QE Pro from your computer.
6. Replug the spectrometer into your computer.
The system should now be able to locate and install the correct drivers for the USB device.
Apple Mac OSX Operating Systems
Since there are no device files for the QE Pro Spectrometer in a Mac operating system, you should not
encounter any problems if you installed the spectrometer before the operating software.
Linux Operating Systems
For Linux operating systems, all you need to do is install the software, then unplug and replug in the
spectrometer. Technically, the driver files for Linux simply give nonprivileged users permission to use
newly connected hardware. There isn’t any long-term harm to plugging in the device before installing the
software.
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