Forum Discussion
Windows 11 25H2 SMB Client Directory Cache Regression
- QUERY_DIRECTORY Increased 95x, "dir" ETW Events Dropped to Zero - Hi SMB Team, I've identified a significant performance regression in the SMB client on Windows 11 25H2 affecting network fi...
The information from Microsoft's Q&A platform directly confirms your diagnosis. A Microsoft responder explicitly states that the behavior you are observing is "not an expected feature change but an active regression within the Windows operating system affecting the Server Message Block client driver" .