You don't need Nokia Connectivity Cable Driver to transfer data from your computer to your device or vice versa. All you need is a compatible USB cable. Connect your phone to your computer using the cable and transfer the files using Copy and Paste feature. Be sure to select the Mass Storage mode. After you transfer the files, go to System Tray and click the Safely Remove Hardware icon. For further information about Nokia Connectivity Cable Driver, you can check Nokia Support page.