A driver is software that enables your operating system to communicate with a hardware device, in this case, the Creative A500 sound card. Without a driver, your sound card may not function properly, or at all. The driver acts as a translator, allowing your operating system to send and receive data to and from the sound card, which enables you to enjoy high-quality audio.
– Usually Realtek High Definition Audio or similar.
Reboot your computer when prompted to finalize the installation. Creative Worldwide Support Troubleshooting
