I run SyncToy 2.1.0.0 between two Windows 7 Pro sp1 x64 machines.
I recently sync'ed about 700 jpg files. The summary screen noted:
SyncToy action was 'Synchronize'.
SyncToy options were:
Active for run all
All files included
No files excluded
Do not check file contents
Include read-only files
Include hidden files
Include system files
Backup older files (send to Recycle Bin)
Some subfolders included
SyncToy run took 00:13:39:596.
Copied 1,843,210,792 bytes in 709 files in 00:13:39:596.
Bytes per second 2,248,925.4, files per second 0.9.
Avoided copying 43,717,156,079 bytes in 33,953 files that did not require action.
Saved approximately 05:23:59:131 by not copying all files.
Warning: 21 failures occured.
You can retry by selecting "Run" again or select "Preview" to see
the operations that remain to be performed.
I looked at the log, where all 21 of the errors were similar to this:
Error: Unknown error. The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020) Copying \\machine 1\path\filename.JPG to \\machine2\path\filename.JPG
There were no other processes on either machine that were accessing any of those files.
I re-ran "Preview" and SyncToy said that there was nothing to do.
So I looked at the 21 files and in fact they had been copied. Thus, the process did access the file and copied it .... so why were the errors thrown?
