Repair your corrupt USB or Hard drive (success rate almost 99%) with the following methods. 1st method is to zero fill the USB which opens but is corrupt due to some kind of virus. Zero filling software helps erase all the data on the Hard drive/USB and there is literally nothing left on a USB after zero filling. The second method is to format it through Windows Disk Partitioning tool from cmd. From cmd , the standards are enforced more easily and thus for those Drives which are locked or cant be formatted, Diskpart can be used. Kharab USB ko theek krnay ka tareeqa.