You need to check if the drivers are correctly installed for Onzo Uploader. Since the device is attached through a USB cable, you need to go to Device Manager. You can access it using Start > Run > devmgmt.msc. If there is a yellow item in the list, right click it and select Update Drivers. Make sure that you are connected to the Internet to retrieve the mass USB storage drivers since you will be connecting a device with a storage device.