Before we go any further, could please take a look at information in this link: Intel® Wi-Fi Products - Silent Installation of Wireless Drivers and Intel® PROSet/Wireless Software - Let us know if this helped you.
I have the same problem. The instructions are non applicable to the files currently downloaded.
Can Intel update the instructions for silent installation?
The documentation refers to msi files. Why are the silent instructions not on the same page as the download link or in a local readme file?
I just need the PROSet Tools for an Intel 8260 wireless adapter on Windows 10 64-bit with a silent installation command that suppresses reboot.
All I see is one file called Wireless_18.40.0_PROSet64_Win10.exe and no working silent commands and no msi files when extracted that silent instructions refer to.
How can I get it to work? The link posted above doesn't seem to address this or the original poster's file.