AFUWIN is a Windows program that helps you update or flash your computer’s BIOS. Its complete name is American Firmware Update Utility for Windows. What makes this tool special is that you can update your BIOS firmware directly from Windows without needing to restart your computer. It works particularly well with motherboards made by major brands such as ASRock. This utility comes in handy in various scenarios, like when you need to upgrade to a newer BIOS version or roll back to an older one if you’re experiencing issues.

AFUWIN Interface

PropertyDescription
Program NameAFUWIN (AMI Firmware Update for Windows)
DeveloperAmerican Megatrends Inc. (AMI)
PurposeBIOS/UEFI firmware flashing utility
Operating SystemWindows (XP/Vista/7/8/10/11)
Versions32-bit (AFUWIN.exe) and 64-bit (AFUWIN64.exe)
Main FunctionsBackup, Update, and Verify BIOS/UEFI firmware
File FormatSupports .ROM, .BIN, .CAP firmware files
Key Commands/P – Program, /B – Backup, /D – Display ROM info
Risk LevelHigh – Incorrect use may damage motherboard
RequirementsAdministrator rights, disabled antivirus recommended