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I guess they are due to the different bandwidth management Windows 10 do on the transfer than that of Windows 7. So the bottlenecks are not due to the driver. However, if you are using the same Windows 7 driver in Windows 10, it should work the same. Or use a USB 3.0 port and a USB 2.0 port, but then you limit the maximum transfer rate to 480 Mbit/sec. The solution is to use two USB 3.0 ports of a different line, which in a laptop is not possible. USB cannot guarantee the transfer rate as firewire could. That's explains the drops, because there are some bottlenecks during the transfer when the buffer is full. If the two USB 3.0 ports are on the same line, power and bandwidth is divided between the two connected hard disks. I don't have the hardware or lad to perform any further tests.
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These two companies (MS and Intel) need to talk and get their act together.
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Though this may not last long as Microsoft seems to be forcing more and more people over to Win10. In the meantime, I stopped trying to find a solution on my Lenovo, and am doing my transfers with my older Win7 machine.
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I have forwarded this information to Intel support as at this point the ball seems to be in their court. The issue doesn't appear to be related to Windows 10 as I was able to perform the transfer on a computer running Windows 10 but using a different USB chipset. I have been able to reproduce the issue on a machine of the different brand (at this time both reproduced on Lenovo and Asus laptop). Based on my latest testing, it appears the issue has to do with Intel USB chip set.
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