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You have to use the command line interface.<br />
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You did not include the error which might be that the files are in use or are somehow marked as system files and can not be deleted.
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You have to use the command line interface.

You did not include the error which might be that the files are in use or are somehow marked as system files and can not be deleted.

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These are not system files, folder &amp;&nbsp;files created by a backup software, see attchement
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These are not system files, folder & files created by a backup software, see attchement

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Didn't work, tried it command line on workstation &amp;&nbsp;Server, same message
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Didn't work, tried it command line on workstation & Server, same message

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What is the message that you are getting?
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What is the message that you are getting?

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The backup system backed up files on the network drive instead of external drive and created a nest of folder and long name files which cannot be deleted, the error message is attached. I need to get rid of the the folder and long name files. <br />
Thank you for your help.
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The backup system backed up files on the network drive instead of external drive and created a nest of folder and long name files which cannot be deleted, the error message is attached. I need to get rid of the the folder and long name files. 
Thank you for your help.

Long File Names

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.