The AV8350 Windows driver typically refers to a driver for a specific hardware component, often related to audio or video processing, or perhaps a network or peripheral device, depending on the exact hardware in question. However, the exact device and its manufacturer aren't immediately clear from the driver name alone (AV8350). It may be a model number for a device that requires specific software to operate correctly on a Windows system.
To answer your question on how to install the AV8350 driver, here are the general steps: