: Reboot your computer into Safe Mode . Open Device Manager, roll back or uninstall the VIA driver, and reboot normally to restore the basic Microsoft display output. Code 43 Error in Device Manager

Symptom: Device Manager shows the VIA M3364 driver installed, but the screen resolution remains low (640 × 480 or 800 × 600) and Aero is unavailable.

: Right-click the device and select Update driver > Browse my computer for drivers .

This article provides a deep dive into what this driver is, why it is critical for legacy systems, how to install it step-by-step, troubleshooting common errors, and where to find safe, virus-free downloads today.

: Windows XP and Windows 2000 are natively supported.

The VIA M3364 is a graphics chip only; it does not process audio. If you lose audio after updating graphics drivers, the two issues are coincidental, not causal. Check your system’s audio driver separately (e.g., Realtek AC’97 or VIA Vinyl Audio).

Finding, installing, and configuring this driver on modern operating systems requires navigating a specific set of compatibility challenges. Technical Specifications of the VIA M3364

Office machines, POS systems, digital signage, and home servers.