i cant open my flash drive

hi guys can you help me on this.. i cant open my flash drive cuz my systerm got infected with 2 viruses namely win32:tiny-gx and win32: tiny-gy but my avast! anti virus cleaned my system but now every time i opne my flash drive i get a window telling me to “open with” or when i right click it the option for open is replaced by gibberish… can you help me on this one?