Your download may have been corrupted or messed up due to one of a few things.1. WinRAR messed it up due to connection problems2. Your internet connection gave out but still preformed a "complete" download (this has happened to me)3. The download you chose may have been corrupted4. You lost connection during the download/upload processTo fix this all you need to do is hover over the EPW folder right click "DELETE" recycle it and re-download or run elementclient.exe and administrator. Hope my input helps.