Windows 11 2022 Update: performance issue when Copying large files

Martin Brinkmann
Oct 4, 2022
Windows 11 News
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Microsoft confirmed a new issue that is affecting machines that run the company's newest operating system, Windows 11 2022 Update.

The issue has not been added to the list of known issues on the Windows 11 Version 22H2 release health website yet, but it has been confirmed by Microsoft Principal Program Manager in the Windows Server engineering group Ned Pyle on the company's Tech Community website.

"There is a performance regression in 22H2 when copying larger files from a remote computer down to a Windows 11 computer."

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Pyle confirms that large file transfers, he mentions multi-Gigabyte files specifically, experience a 40% drop in throughput over SMB on Windows 11 version 22H2 systems. The copying down / reading performance is affected when copying large files.

While Pyle mentions SMB specifically, he notes that the issue can't be attributed to the protocol, but may affect other transfers on Windows 11 machines as well, including local transfers.

"SMB is just the most likely scenario to be noticed. You could see this behavior even with local file copies not using SMB."

Pyle suggests that users run copy operations using robocopy or xcopy with the /J parameter instead to avoid the issue. He provides the following example in the blog post.

robocopy \\someserver\someshare c:\somefolder somefile.ned /J

Windows 11 users may use other file copy tools, such as Fast Copy, TeraCopy, or CopyMaestro as well to copy large files without running into the issue.

Pyle confirms that Windows 11 2022 Update systems are the only systems affected by the issue. The release version of Windows 11, as well as other Windows operating systems are not affected.

Microsoft is investigating the issue to create a fix for the issue.  There is no ETA yet, as Microsoft has yet to fully understand the cause of the issue. Pyle announced that he will update the post once Microsoft has more information to share.

Now You: did you run into copy performance issue on Windows lately? (via Deskmodder)

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Windows 11 2022 Update: performance issue when Copying large files
Description
Microsoft confirmed a copy performance issue that is affecting machines that run the recently released Windows 11 2022 Update. 
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Ghacks Technology News
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Comments

  1. Paul(us) said on October 4, 2022 at 12:09 pm
    Reply

    Lol, could this be because of the “Play Lunar Lander in the copy dialog on Windows ” possibility? :-)

    https://www.ghacks.net/2022/09/13/play-lunar-lander-in-the-copy-dialog-on-windows/

    1. Mikal said on October 5, 2022 at 4:46 am
      Reply

      LuL

  2. John G. said on October 4, 2022 at 5:02 pm
    Reply

    Ha Ha – Nelson’s laugh for everything related with W11 itself.
    https://www.youtube.com/watch?v=rX7wtNOkuHo

  3. Herman Cost said on October 4, 2022 at 11:50 pm
    Reply

    Windows 11 is a bad joke. And it was absolutely unnecessary. It is an operating system that requires a large portion of it’s user base to upgrade their PC’s to use it, and it provides little if any improvement in functionality along with many significant drawbacks. Really?

    Might it not have made more sense for Redmond to take their time and actually provide an operating system that was a real improvement over Windows 10, even if that meant they had to wait another couple of years to test (yes, I realize that they don’t really rigorously test anything because they decide to have customers do that for them) and deploy it?

    What kind of thought process is going on there (although I guess I answered my own question in the preceding paragraph when I stated that people would have to buy new PC’s with new Microsoft software and associated new Microsoft revenue to use Windows 11)? In any case, it appears to me that they have in fact lost interest in the operating system business and have relegated it to the less talented among their employees. If that is the case, I do think they would be better off selling it to someone who actually wanted to put their best talent to work on it and make it truly better.

    1. Matsk said on October 16, 2022 at 11:53 am
      Reply

      Herman Cost, I agree, it’s as if a bunch of inexperienced programmers have just been given windows pre built tools and told to do their best to build a platform that still laregely runs on windows 7 architecture (as you can see by going into the group policy or loading the still existing windows 7 control panel).

      If you upgrade from a windows 7 machine to a windows 10 or 11 then yes your apps usually work, but try to isntall those same apps in windows 11 from a fresh install and it’s almost imposible.

      Windows 10 and 11 are the operating systems i have had to re install the most, if you report a problem to microsoft it is clear whoever is in charge has no clue about troubleshooting or how to program as all the support staff say when you report a problem and a fix after using your 18 years as an IT tech to solve their issue, is to do a repair, an in place upgrade or re install, if it doesn’t work out of the box or as expected they have no clue.

      Windows 11 0kb file transfers hanging the system for hours, cataloguing of your files and and apps, all the telemetry user data that is sent and the OS’ hardware expectations is a joke.

  4. EP said on November 30, 2022 at 9:47 pm
    Reply

    hi Martin. this MS blog was updated Mon. Nov. 28 with the following:

    https://techcommunity.microsoft.com/t5/storage-at-microsoft/slower-smb-read-performance-for-large-files-in-22h2/bc-p/3644723

    “Fix update 11/28/2022: The preview fix for this issue is now available in Windows 11 Insider Preview Build 25252. The final fix for Windows 11 22H2 production computer will come in a normal monthly Cumulative Update through Windows Update once validated in Insider builds.”

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