Restoring files from a backup image on a drive with Windows data deduplication enabled may fail for certain files

Summary

The File Recovery task uses robocopy in the background, preserving access rights and attributes. The robocopy option excludes junctions to prevent infinite loops. However, on a Windows data-deduplicated drive, the data deduplication involves a chunk store treated as a kind of junction. As the recovery task excludes junctions, restoring files from a backup image on a Windows data-deduplicated drive may fail for some files.

Workaround

To restore a file from a backup image on a drive with enabled Windows data deduplication, mount the backup image and manually copy the file.

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