Fix Problems With Copying Large Files in Windows Vista
If you’ve been having problems copying large files over mapped drives, network disconnects, or having to reboot your router a lot more often than normal, then you can try out this fix to solve the problem.
The problem stems from the new auto-tuning network, which changes the receive window on the fly. Thankfully we can easily turn it off from an administrative mode command prompt.
Open Administrative Mode Command Prompt
Either type cmd into the start menu and use Ctrl+Shift+Enter or right-click the Command Prompt shortcut and choose Run as Administrator.
Turn Off Auto-Tuning
netsh int tcp set global autotuninglevel=disabled
You’ll have to reboot your system, but once you do, the problems should be resolved. If they are not you can always turn auto-tuning back on.
Turn On Auto-Tuning
netsh int tcp set global autotuninglevel=normal
For more information on this topic, you can read this article from MSDN blogs.
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Geek – you’re a star! this has really been bugging me.
Another one for you – any idea how to remove the need to login to view shared folders?
Yes! Ah this is going to save me sooo much time. Thanks a bunch!
I thought this was a bug in Vista, but it’s all gone now.
this is awesome!..I nearly pulled my hair out dealing with Vista’s asenine feature (what the heck happened to the “Yes to All” button?)…this solution helped, though it was still a bit slow it was not nearly as slow as 230 days remaining…
you rock!
Just tried and I get: Set global command failed on IPv4 The requested operation requires elevation?
zdawgz,
administrative mode command prompt…
My windows xp system hangs (blue screen of death) when i try to copy files larger then 4 GB to my a nfs mounted filesystem (solaris9). I have unix for windows installed on my xp system. I can copy the files from the solaris to the windows system without problems…but the windows systems always hangs when i try to copy back to the nfs filesystem. Help!
I’m sad to report that this doesn’t work at all for me
If anything I think its making it worse. Now if I try copying files from my vista box to my xp box it hangs almost instantly after it starts copying. Quite annoying. Hopefully microsoft will fix all this in SP1.
Hi there,
any chance you could help me out? This fix doesn’t solve my problem: copy my OS ghost image to another drive for recovery over ext hdd
(Original file on DVD and is approx 5GB)
Thak you in advance..
m.
Damn!!! I upgrade mi Vista to SP1, and the problem stills there!!! I disabled all features that I don´t need on Networks…. I do all that recommends on this page, and the problem stills there, I can´t copy large files from a machine running XP to my machine running vista….
But the strange thing is that if I command to copy the files from the xp machine, works flawlessly!!!
Any suggestions? Thanks in advance.
Agustín
Same here. I’m running SP1, tried disabling the auto tuning and its definitely worse. The robocopy and copying to a mapped drive workarounds don’t work either. Grinds to a halt and then fails.
hi guys
I was also facing the same problem . i have also tried all the possible solutions available on the internet and this site as well, but nothing works for me.
finally i decided to do somesthing , and i discovered the solution.So if nothing works for you guys also , do the following steps
———
Just go the network adapter setting and clicks on ‘Configure’ button for the settings
and under ‘Link Speed’ tab go to ‘Speed and Duplex’ and select the ‘Auto Negotiation’
After apply above steps ,I hope slow file copy problem will be solved
Thanks
Mmm… another solution would be using SyncToy. That program is really good. Give it a try.
My computer has been problems due to windows XP pro.When computer restart or start so any file copy very slowly but 2nd attem is normal behavear
plz plz answer
This has really helped! I reinstalled my Vista on my new VAIO probably 25 times now trying to solve this thinking it was due to program compatibility!
This is also a fix windows live messenger failing to logon.
Hopefully Microsoft will ONEDAY release a flawless operating system.
i have so many emails attachments send to me, but most do not open and most of them are temp folder. Please sole this problem for me as soon as possible. Many thanks in advance.