If the manufacturer provides a valid BIOS binary file ( .rom or .bin ), they will usually include an AMI utility like AFUWIN (for Windows) or AFUDOS (for DOS) to safely apply the update. Follow their bundled instructions precisely. Summary Checklist for Aptio CRB Systems Driver Needed Best Source Chipset / CPU Drivers Intel DSA / AMD Auto-Detect Safest and most up-to-date method. Audio & Ethernet Device Manager Hardware ID Usually manufactured by Realtek. Wi-Fi & Bluetooth Intel / Realtek / Qualcomm Identify via Device Manager first. BIOS Updates System OEM Website Only Do not attempt without exact matching model numbers.