Windows 11 2022 Update: Performance issue when copying large files


Microsoft has confirmed a new issue that affects machines running the company’s latest operating system, Windows 11 2022 update.

The issue has not yet been added to the list of known issues on the Windows 11 version 22H2 health website, but has been confirmed by Microsoft Principal Program Manager of 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 to a Windows 11 computer.”

Pyle confirms that large file transfers, he specifically mentions multi-gigabyte files, experience a 40% drop in throughput compared to SMB on Windows 11 version 22H2 systems. Copy/read performance is affected when copying large files.

Although Pyle specifically mentions SMB, he notes that the problem cannot be attributed to the protocol, but can also affect other transfers on Windows 11 machines, including local transfers.

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

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

robocopy someserversomeshare c:somefolder somefile.ned /J

Windows 11 users can also use other file copy tools, such as Fast Copy, TeraCopy or CopyMaestro to copy large files without encountering the problem.

Pyle confirms that Windows 11 2022 Update systems are the only systems affected by the issue. The final 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 not yet fully understood the cause of the problem. Pyle said he would update the post once Microsoft had more information to share.

Now you: Have you encountered copy performance problem in Windows lately? (via Deskmodder)


Windows 11 2022 Update: Performance issue when copying large files

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Windows 11 2022 Update: Performance issue when copying large files

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Microsoft has confirmed a copy performance issue affecting machines running the recently released Windows 11 2022 Update.


Martin Brinkman


Ghacks Technology News




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