This article is for the 6-foot USB to Serial Cable for Power Pro only
Please note that this article NOT for the NCE USB interface board - 5240223
*Note: You may need temporarily uninstall McAfee or other antivirus software that prevents automatic installation of software drivers.
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You might need to install the driver manually if you see this message in Windows Device Manager under Other devices:
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Windows 10 instructions: How to Install Optional Updates
To check for optional quality updates: Click on your Start button then Settings > Update & Security > Windows Update. Click “Check for Update” to check for available updates.
Windows will install any mandatory updates (including security updates and non-optional cumulative updates) automatically.
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2: If an optional quality update is available, you’ll see a message saying so below the “Check for Updates” button. Click “Download and Install”. Complete this section next. 
If you have no regular Windows updates that need to be done, then it will look like this instead:
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3. Click “View all optional updates or View optional updates” You should see this:
Click the Black arrow to expand the section and see your optional update list.
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4. Put a check mark in the box shown above for: wch.cn. then click the Download and install button. Let the installation complete.
5. Go back to Windows Device manager and check the port again. It should now look like this:
The driver is now installed correctly. Make a note of the COM port number used by the cable. Your software will need to be configured for the same port number.
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