As i said on the topic. While i use my external hdd, my computer freezed and i restart it. After windows started, i plug hdd again i couldn't see my hdd on 'my computer'. But i can (not cant) see it My Computer(Right click)>Manage>Disk Management and Control Panel>System>Device Manager>Storage Drivers(i dont know exact word for it, coz i use Turkish Win) And i can't do anything from these tool. I cant give driver letter, i cant recover or see with recovery programs, i cant and i cant And i know it nothing to do with OS, and i need all things in this hdd. Device : WD 3200BEV External USB Drive And thats my problem, please help me out.