Why is tranferring files from Windows 7 to my external HDD much slower than using Windows Vista?

La Boheme March 2, 2013
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I have an older laptop running Windows Vista 32-bit. I have transferred files from the laptop to my Acomdata terabyte external HDD (FAT32) and it handled those transfers efficiently and fast. I’ve also transferred files from my old Gateway running Windows XP to the Acomdata external HDD with no problems either. I recently got a new AMD desktop with the following…

Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1
Processor: AMD FX(tm)-4100 Quad-Core Processor (4 CPUs), ~3.6GHz
Memory: 8192MB RAM Available OS Memory: 8174MB RAM

For some reason, transferring files of any size from the new machine to the external Acomdata HD is much much slower than previously using the laptops. What used to take 4 minutes to transfer files from the laptops to the external HDD now takes 35 minutes on this new desktop machine.

Why is the transfer rate so much slower using Windows 7 64-bit Ultimate on the desktop than it was on the laptops running Windows Vista and Windows X? All have been using the same USB connection so that’s not changed. Is there some sort of setting in Windows 7 that I need to tweak? Thank you.

  1. yuitre_
    March 7, 2013 at 12:37 pm

    Enable write caching under the policies tab in device properties. That will give you better transfer speeds.

  2. Imesh Chandrasiri
    March 5, 2013 at 11:29 am

    Is it the same file you are copying from windows vista and windows 7. if so, please find appropriate USB drivers and install them on Windows 7. ( chipset driver would do ) Although windows 7 detects the drivers, the device vendor might have fixed a bug or two in the driver they offer.

    If the files are different and the speed is slow when transferring small files, it's normal. try a third party copying tool and see whether the speed is getting high. furthermore, defrag your HDD frequently. this will fasten the file fetching.

  3. Jim Chambers
    March 3, 2013 at 9:43 pm

    Try installing most current chipset driver for you motherboard.

  4. Jan Fritsch
    March 2, 2013 at 7:31 pm

    The only setting I know of is the optimization for fast unplugging by disabling the cache for the external device but that shouldn't result in such a huge difference.
    Usually the limit is the speed offered by the USB device and enabling the cache would only a make a small difference.

    Either way, you can change that setting using the Device Manager my right-clicking the external drive, selecting Properties and then within the Policies tab.

  5. ha14
    March 2, 2013 at 3:48 pm

    1) go to DEVICE MANAGER
    4) Makes sure it is ENABLED.

    1) go to run and type services.msc
    2) locate Background intelligent transfer service try it to manual if it is automatic for example, if this do not help revert back to earlier status.

    reinstall driver external hard drive.

    run also this microsoft fix it

    15606: VERY slow backup SOLVED - for Win7 64bit and External Hard Drive (firewire)

    you can also use teracopy or extremecopy to make copy faster