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  1.    09 Mar 2016 #11
    Join Date : Sep 2015
    Posts : 2,190
    Windows 10 Pro 64-bit 1607 (AE build 14393.321)

    Visit manufacturer's site and download latest USB 3.0 driver. If there is no driver for Windows 10, use that of 7 or 8. Install it just in case Windows Update has replaced it with a generic Microsoft driver. Then use the show/hide tool to hide any relevant update so it won't be replaced again. If it is an Intel USB 3.0 controller, you could also try the latest driver directly from Intel's support site.
      My System SpecsSystem Spec

  2.    15 Mar 2016 #12
    Join Date : Mar 2016
    Posts : 5
    Windows 10

    Intel USB 3.0 eXtensible Host Controller

    Based on my latest testing, it appears the issue has to do with Intel USB chip set. 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). 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 forwarded this information to Intel support as at this point the ball seems to be in their court. In the meantime, I stopped trying to find a solution on my Lenovo, and am doing my transfers with my older Win7 machine. Though this may not last long as Microsoft seems to be forcing more and more people over to Win10. These two companies (MS and Intel) need to talk and get their act together...

    If you have a Win10 machine using the Intel eXtensible USB chipset, I would be interested in hearing whether you can perform the same transfer: 200Gb or more between two USB connected hardware drives. Notes:
    • I don't have a drive (other than flash) greater than 32Gb
    • Transfers work well using Win7 on older machines (several)
    • I can transfer 200Gb between the internal SSD and an external USB drive without trouble
    • I can transfer 200Gb between an external USB drive and the internal SSD

    I don't have the hardware or lad to perform any further tests. Intel needs to step up.
      My System SpecsSystem Spec

  3.    16 Mar 2016 #13
    Join Date : Sep 2015
    Posts : 2,190
    Windows 10 Pro 64-bit 1607 (AE build 14393.321)

    Don't worry about the Windows 10 upgrade. The deadline to do it for free is until middle June 2016. After that it would be possible to do it, but you'll have to pay for the license. You have about 3 months to try and resolve your issues. In the meantime hopefully Intel will have released better working drivers.
      My System SpecsSystem Spec

  4.    16 Mar 2016 #14
    Join Date : Mar 2016
    Posts : 1
    Windows 10 Pro

    I have purchased a Lenovo Thinkpad E560 and have the same problem -

    When copying a large file over a GB, they drop the speed down to 0 bytes - and comes back up the speed several seconds later - but drops again..

    I was trying to see what went wrong, but the same external drive fails on Lenovo works on Acer laptop.

    Contacted Lenovo for this issue - waiting for the answer from them.

    forgot to mention, Acer laptop is also using Intel USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
    Last edited by hughkim; 16 Mar 2016 at 22:05. Reason: Adding
      My System SpecsSystem Spec

  5.    17 Mar 2016 #15
    Join Date : Sep 2015
    Posts : 2,190
    Windows 10 Pro 64-bit 1607 (AE build 14393.321)

    If the two USB 3.0 ports are on the same line, power and bandwidth is divided between the two connected hard disks. That's explains the drops, because there are some bottlenecks during the transfer when the buffer is full. USB cannot guarantee the transfer rate as firewire could. The solution is to use two USB 3.0 ports of a different line, which in a laptop is not possible. 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.

    However, if you are using the same Windows 7 driver in Windows 10, it should work the same. So the bottlenecks are not due to the driver. I guess they are due to the different bandwidth management Windows 10 do on the transfer than that of Windows 7. I am not sure, but you could change that from Device Manager. Connect both USB devices. Then go to Device Manager, right-click on one and select Properties. Select the Policy tab. Change from "Quick Removal" to "Best performance". Click OK to apply. Do that again for the second device. Now start the transfer again and see if the problem is solved. Let us know to do the same (when I got my hands on a computer with USB 3.0 ports, that is).
      My System SpecsSystem Spec

  6.    03 Jun 2016 #16
    Join Date : Jun 2016
    Posts : 1

    Quote Originally Posted by lx07 View Post
    You can't just install the Windows 7 driver in compatibility mode - you get a message "Your system does not meet minimum system requirements"

    Based on this thread you must edit the iusb3hub.inf and iusb3xhc.inf files to accept Windows 10 (delete lines with NTAMD.64.6.2 and change NTAMD64.6.1 to NTAMD64.10.0). Then you can install as described here

    Just to give my thanks, this seems to have made USB3 devices usable on Windows 10 using Asus z97-ar motherboard. Microsoft supplied driver caused rapid disconnecting/connecting and declining write speeds to the point of 0b/s when the device happened to stay connected.

    After installing Win7 drivers from Intel's website this way, write speed is USB3 level and no more rapid disconnects.
      My System SpecsSystem Spec

  7.    03 Jun 2016 #17
    Join Date : Mar 2015
    Posts : 1,022
    Windows 10 Pro x64

    Quote Originally Posted by Carsomyr View Post
    For all of you in this thread, make sure your windows power plan is set to max power. USB 3.0 ports require it to function properly.
    Do you have a link to explain this? I've never had an issue using my USB 3.0 ports on different power plans.

    I've had to edit the USB 3.0 drivers to get Intel ports working under Windows 8.1, but on every system I've used Windows 10 on, the ports worked perfectly fine with built-in drivers. I was under the assumption this was fixed in 10.
      My System SpecsSystem Spec

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