I have a 1gb flash disk and i cannot open it. I am able to use it before and i don't know what happened why it stopped working. Whenever i double click it from my computer, an error message appears saying that there is an i/o device error. I right-clicked it and tried formatting but it doesn't work. It says that the drive is write protected. I also tried reformatting it using the disk management in control panel but it also doesn't work. It also says that the drive is write protected. I don't need to recover my files, i just want to be able to use my flash disk again. Any solution?