If you are seeing the error on your Windows PC, you are not alone. This is a common error specifically associated with Gigabyte motherboards, graphics cards, and their proprietary software suite, App Center.
Step-by-step troubleshooting (ordered, concise) unable to load dll fbios.dll gigabyte
This will not harm your PC. Your motherboard will continue to work normally using BIOS defaults. "Unable to load DLL 'fbios
Uninstall all legacy Gigabyte utilities: If you do not actively use Gigabyte overclocking