some files missing on external hard drive

[kasun090354t]

mage external HDD eke 65GB withara file wagayak mama cut and past kara computer HDD ekata. file tika copy welath na External eketh na. eunata total space eke 65GB aduwela.
mata file tika onawenne na.
natiwela tiyana space eka ganna puluwannam udauwak karahalla.

 

[lilman]

external HDD eka scan karala balanna bad sectores tiyanawada kiyala

 

[kasun090354t]

external HDD eka scan karala balanna bad sectores tiyanawada kiyala

kohomada?