Enabling Support for Long File Paths in Windows 10
If you are using Windows 10 Anniversary Update (build 1607) or later,Desktop Import/Export can read and write files with paths that exceed 260 characters via Windows' native long file path support.
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Open the Start menu, type "gpedit.msc", and select Edit group policy from the search results to open the Local Group Policy Editor.
In the sidebar, expand Computer Configuration → Administrative Templates → System, and select Filesystem.
In the right-hand pane under Settings, double-click Enable Win32 long paths.
At the top-left corner of the configuration dialog, select Enabled.
Click OK to save your change.
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Note: When exporting documents, Desktop Import/Export cannot create a ZIP archive of the export folder if the any files in the folder have a full path that exceeds 260 characters.