Windows 11 22H2 Slows Down Copying of Files
Microsoft has confirmed a problem with copying large files over SMB after the Windows 11 2022 update, where users experience a drop in replication performance when copying files from remote computers or even on a local drive. To mitigate this issue temporarily, Microsoft recommends using built-in tools like robocopy or xcopy instead.
Large file copies on Windows 11, version 22H2, may take longer than expected due to issues with copying files from network shares via Server Message Block (SMB) or local file copying.
Users have reported a noticeable drop in system performance, with some experiencing file copying times that are more than double what they were before the update.
Microsoft has yet to provide a permanent fix for the issue, but the company is working on an update for its next release. In the meantime, users can use file copy tools like robocopy and xcopy with the /J flag, which bypass the cache manager (buffered I/O), to minimize the performance impact.
- Tip
-
robocopy \\someserver\someshare c:\somefolder somefile.img /J
OR
xcopy \\someserver\someshare c:\somefolder /J
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