Ni flash disk (Gπ ya 4 GB. Files na folder chache zilizomo (saved documents) zinafunguka, nyingine nyingi hazifunguki. However, huwezi ku delete chochote, huwezi kuiformat, haipokei faili lolote. Response ktk hayo ni ...this disk is write protected. Haina kale ka batton ka pembeni ka protection. Inatibikaje hii?