sorry I find the answer
please delete this post
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Hi, file NTUSER.DAT is located on folder %BootSRC%(%InstallSRC% and x64 and x86)\Windows\System32\config\systemprofile in My Win8.1.iso, so 1-files.script can not copy it correctly. and my %TargetDir% has no NTUSER.DAT file.
I don't know is my Win8.1.iso special? or 1-files.script is not correct?
MY Win8.1.iso is chinese Traditional, I upload my script.project, there are more information.
sorry my bad English
1-files.script (line 774)
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// NTUSER.DAT from boot.wim
FileCopy,%BootSRC%\Users\Default\NTUSER.DAT,%TargetDir%\Users\Default