Campbell Scientific SC-USB USB to CS I/O Optically Isolated Interface - Manual (Page 25)

SC-USB USB to CS I/O Opto-isolated Interface
The Wizard will then continue through a number of steps, e.g.
Rather than completing it will appear to restart the installation again as the
‘Found New Hardware Wizard’ appears again. This is not an error. Windows
first installs the USB drivers and then the virtual serial port drivers. You need
to follow the same steps as above again, until finally you get to this screen.
If you subsequently change the device ID (see Section 3.2), the PC may request
the installation disk again as it will insist on re-installing the driver.
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