My husband has a chipsbank flash usb and when he was moving it from computer to computer, a file showed up. He deleted all the files from the flash. When it is plugged into the computer, the computer asks if we want to format it. I clicked yes and then the computer says, "windows can not format the drive". what is missing to make this flash not work? It's a 64mb but windows says it's only 8. what can I do to fix this problem? I have been searching for a file or something to get it working but no luck.