I have seaget 500 external hard disk & i run chkdsk cmd & then i back to the system open with recovery section & not shown then i wil be go on another window install on c without select any delete & formatted option then window will be installed but the old window folder not shown in c drive & i have selected allredy shown hidden file but they are not shown my data has gone how can i back my data you have any option to get back my data pls help its urgency pls