yep pisthai is correct, altough this already happen here and one solution: I catch my big hammer (2kg) and pow pow pow on it several times so I solved the problem for ever hell of pendrive
Which is the better thing to do for High Level Format. Use the Windows Format or another external programme? If the answer is Windows Format:- When Windows Format opens "Allocation unit size' is pre selected as '4096 bytes'. Do I leave it that way or select the option below that, 'Restore device defaults' which change the unit size to 'Default allocation size'?