Use mklink to transfer apple backup files from disk C to disk D.
Command format: mklink / d (definition parameters)\ MyDocs (link file)\ Users\ User1\ Documents (original file)
/ d: create symbolic links to directories (symbolic link)
/ j: establish a soft link (join) of the directory (junction)
/ h: establish a hard link to the file (hard link)
For example: mklink / D "C:\ Users\ Administrator\ AppData\ Roaming\ Apple Computer\ MobileSync\ Backup" D:\ Backup "
Delete: go to C:\ Users\ Administrator\ AppData\ Roaming\ Apple Computer\ MobileSync directory to delete the shortcut of Backup.