maray pass ek 8GB usb hay.vo na open hote hay na memory show karte hay na data.usb k icon pe click karo to msg ata hay k is pe write protection hay pahly ya disable karay.mjay iske samj nahe aa rahe me ne formet karny ki bi try ke hay bt formet b nahe hote.msg ata hay k There is no disk. ya mary USB tek kaise hoge???? plz help