thanks to read my message
after transfer my document and plug out my external hard " my passport 3.0 500 g.b " all data delete , plz help me
You may have disconnected the drive without doing a safely remove or eject. If this is the case the data might be corrupted, to get it back you may use a data recovery software like recuva.
thank you too much for your advice , i solve the problem , i use a shadow user program " just like a deep freez " , and this program deal with the external hard as a Part of partation C which I Freez it , any way thank u too much for your interest