Why is my copy speed so slow between two external drives?

Gurjot S September 29, 2013
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I need your help in solving my problem. I have 2 external hard disks : 1. Seagate Freeagent GoFlex 500 GB and 2 . Western Digital My passport 1 TB

Recently I installed Seagate Complete Package software and scanned my drive for errors. It said that the drive needs maintenance go to your nearest repair center. So, I thought moving all my data from the Seagate to my Western Digital hard disk. As I selected the files and copied and pasted them to the Western Digital drive, the process started. After 10-20 seconds, speed drops down to 0-200 KB/second from 25-30 MB/second!

I don’t know what the problem is ! Why the copy speed so slow?

  1. Bill G
    September 30, 2013 at 3:33 pm

    1) Make sure the drives are on different USB ports with nothing else connected. USB will drop the speed to the lowest speed device on the chain and two device on the same chain will be slower.

    2) If the drive is giving errors the copying program is probably rereading the same portion of the drive many times to try to get a good reading. This slows things down tremendously. Be happy it can read anything at all.

  2. Dalsan M
    September 29, 2013 at 9:37 pm

    Fragmentation, disk errors, out of date drivers, and even other USB devices connected to the computer can all have a negative impact on the transfer speed. You could try TeraCopy instead to see if transfer speeds increase. http://codesector.com/teracopy

    • Gurjot S
      September 30, 2013 at 8:52 am

      already tried tera copy , fast copy no positive results.....
      drivers= up to date (i update them once a week)
      only my 2 hdd's are connected to the computer ...

  3. Hovsep A
    September 29, 2013 at 7:48 pm

    it can be driver problems, while both hard drive plugged
    1) go to device manager
    2) locate both hard drive drivers, right click on it and choose uninstall (do not delete)
    3) reboot

    4 Ways To Copy Files (Faster) In Windows

    • Gurjot S
      September 30, 2013 at 8:54 am

      already did it earlier, this gave no success so i just tried to move the data with that slow speed !! after 100 gb was freed from my drive the drive became good again !! lOl .... now me getting good speed but can't trust it so moving all the data and will give it for replacement tomorrow !!!


    • Hovsep A
      October 1, 2013 at 2:02 pm

      well perhaps you used 95% of the storage volume this can affect the speed, or some files have CRC errors so Windows does not handle it well, you should check which file has the CRC error.

      The stuttering DVD drive or the lame hard disk

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