Hi,
>> I receive the error "file is open with another program".
Please close related using programs which is using this work folder.
You could using process explorer to check the related thread.
Download link: https://technet.microsoft.com/en-us/sysinternals/processexplorer.aspx?f=255&MSPPError=-2147217396
Please log off this account then using domain admin privilege to create user's work folders to see if it helps.
Besides, please refer to link below to recreate it:
https://blogs.technet.microsoft.com/canitpro/2015/01/19/step-by-step-creating-a-work-folders-test-lab-deployment-in-windows-server-2012-r2/
Best regards,
Andy
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