Jaribu hii. Plug hiyo external yako.ingia kwenye command prompt.halafu andika command hii
CHKDSK X: /F
hapo X represent your drive letter. Then subiri kama dakika tano hivi kuna process zitafanyika, process zikimalizika mpaka mwisho unplug and plug your external back.jaribu kuifungua uone inasemaje