The files are corrupt message has nothing to do with the USB Loader section. The files are corrupt error message is usually due to installing Priiloader and then after that you patch an IOS that Priiloader uses. The USB loader does not patch any IOS so this is not the cause. You must be doing something out of order. Are you installing hermes before or after you install priloader? Are you running DOP-IOS before or after you install Priiloader?