I'll assume your E: drive is a CD or DVD burner. By "download an upgrade", many people think they need to update the device drivers, but that doesn't apply to optical drives. If you are looking for a firmware update, you need to provide the model of your drive, which can be found in device manager or drive properties.
Please go to the FAQ and take a look at the article on troubleshooting CD/DVD drives first. When you post back, it would be helpful to get more details about the problem.