Speed up network file copying in Vista

Discussion in 'Home Networking' started by Conor, Apr 19, 2008.

  1. Conor

    Conor Guest

    Apparently Vista implements TCP "autotuning" which many routers don't
    like and it's resulting in monolothic file copying times across a
    network. Turning off the autotuning can result in file copy times
    significantly faster than XP!!

    This will only work if you have installed SP1 on Vista.

    Open an Administrative Command window (Start, All Programs,
    Accessories, right click on Command Prompt and select "Run as

    At the command prompt type:

    netsh interface tcp set global autotuninglevel=disabled

    Job done.
    Conor, Apr 19, 2008
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  2. Conor

    Jeff Gaines Guest

    If that works it could make all the difference to me, and lots of others

    Thanks for posting :)
    Jeff Gaines, Apr 19, 2008
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  3. Conor

    Conor Guest

    In the testing done, it took the 5 minutes it was taking to copy a 61MB
    file across down to 6 seconds and 424MB file 1 min 34 sec on Vista as
    opposed to 1 min 53 sec on XP.
    Conor, Apr 19, 2008
  4. Conor

    Jeff Guest

    I have Vista ultimate _without_ SP1 and the above works. Do I have to
    input the command every session Conor? Just copied an 800 meg video
    file to my NAS in around two minutes as opposed to the usual 15 or so
    it was taking before. I always wondered why my wife's XP machine could
    copy a file from the NAS so much faster than I could.

    Many thanks for the heads up!
    Jeff, May 14, 2008
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