File Copy Dialog box hangs in mid-copy; Cancel does nothing.
Hi all, I'm having the aforementioned issue fairly often with Windows 7. It seems to happen when copying to network shares. It is more than annoying--it is literally stopping production at our company. I would really appreciate an realistic fix for this--that is, one that isn't the catch-all "Reinstall windows". Let me further state that it has nothing to do with hardware--I can reliably copy the same files in XP. It is a Windows 7/Explorer thing. It also seems to be size-related--but I haven't had the time to do scientific testing to verify this. I know that if I'm copying an Access .mdb file from my development machine (Windows 7) to a client machine (mostly windows XP) with a mapped drive, it seems to hang. But if I compact/repair the .mdb file and bring it from, say 25 meg to 12 meg, it seems to copy fine. Worse, is that when it hangs, I'll finally hit "Cancel" after a few minutes, and then the entire Windows 7 locks!! I can't do anything until I ctrl-alt-del and kill the Explorer.exe process, which wipes out my desktop, etc, until Explorer.exe auto-starts. This is such a huge problem that I have to think there's a fix upcoming. Thanks, --Jim
October 19th, 2010 6:28am

Hi, May I know how it works if you copy files between local drives? Please also boot the system to Safe Mode with networking and check this issue. In addition, may I know more information about the machine which hosts the share folder you mapped is located, a Windows based computer? Please also let us know the operating system. Based on my research, I would like to suggest the following: 1. Try disabling Receive Side Scaling, Chimney Offload, and NetDMA support and see if it works: Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in Windows Server 2008 2. Also run the following commands in Windows 7: netsh interface tcp set global autotuninglevel=disabled netsh int ip set global taskoffload=disabled 3. Try Robocopy: Get to Know Robocopy for More Powerful File Management For detail information about the usage of the Robocopy command, please also refer to: Robocopy Meanwhile, I would like to share the following with you for your reference: Slow Large File Copy Issues Windows Explorer and SMB Traffic Hope this helps. Thanks.Nicholas Li - MSFT Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
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October 21st, 2010 11:33pm

The two netsh commands resolved this issue for me. It took a while to actually find something to fix this.
December 28th, 2010 10:55am

Try to upgrade to SP1. I noticed this to and did the upgrade. The problem was resolved after the upgrade.
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March 30th, 2011 4:51pm

This may be related to Symantec Endpoint Protection if you have it installed. It fxed my issue by updating to the following version. Review the following release note on SEP 11.0.6300 ------------------------------ File copying dialog hangs when copying between Windows 7 and Windows 2008 computers Fix ID: 2102159 Symptom: With Server Message Block Volume 2 (SMB2) enabled, file copies between Windows 7 and Windows 2008 may hang. The file copy dialog may never complete. Solution: The Teefer2 driver was optimized to avoid a FIFO queue bottleneck when processing SMB2 packets. ------------------------------
April 8th, 2011 12:31am

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