The reason this is flagged as Windows 10 issue is that there is a working driver for older Windows (it is not the latest version) - See the post further up this thread:
Intel(R) Network Connections Software Version 19.1 Release Notes
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March 10, 2014
Hi there,
The downloaded files unfortunately do not contain version numbers in the file name or details.
Luckily I do have the old file saved, although it doesn't work with Windows 10. I opened the archive with WinRAR and viewing the readme.txt shows
Intel(R) Network Connections Software Version 19.1 Release Notes
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March 10, 2014
The Windows 10 version (same procedure):
Intel(R) Network Connections Software Version 20.2 Release Notes
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June 25, 2015