If you encounter issues during or after installing sound drivers, try these troubleshooting steps:
Many Connex laptops have disabled audio devices in BIOS (e.g., HDMI audio, modem audio). Show how enabling them via setup_var (UEFI variable modification) can restore unexpected functionality.
Running it required disabling driver signature enforcement:
If you don't want to hunt for a file, Windows can often find it for you. Connex L1470 - Microsoft Q&A