AFUWIN.EXE, UCORESYS.SYS, UCOREVXD and UCOREW64.SYS: These are the Flash Memory Writer utility that updates the BIOS to the programmable flash ROM chip on specific model. The latest BIOS is embedded within AFUWIN.EXE. To determine the BIOS version of your motherboard, press F2 to enter the BIOS setup utility during boot up, and check the BIOS version from the Main menu. Larger numbers represent a newer BIOS file. This utility works in Windows® XP, Windows® XP 64 bit And Windows® Vista™ (Setting for Windows® Vista™ before BIOS update). And this utility is included in the BIOS package. (How do I check the BIOS version?)
How do I check the BIOS version?
1.The BIOS version can be found during system boot up.
2.The BIOS version can be found in BIOS setup utility.
The Flash Memory Writer utility can not be suitable for all ASRock motherboards. Please use the Flash utility which is included in each BIOS file to update its BIOS. Also ASRock motherboard MUST use ASRock's Flash utility to update BIOS, those uncertified BIOS flashing tools will cause motherboard damage.
»Updating BIOS Procedures (Setting for Windows® Vista™ before BIOS update)
1. Download the BIOS package (WinZip format with .zip file extension). And close all programs.
2. Unzip and save all files to the same directory of any storage location accessible by the host system. And you should see AFUWIN.EXE, UCORESYS.SYS, UCOREVXD and UCOREW64.SYS.
3. Click AFUwin.exe.
4. It shows a dialog icon to remind you to close other programs. Click "OK".
5. After finishing upgrading the BIOS, it shows a dialog icon to remind you to restart the system. Click "Yes".
6. After system restart, press F2 to enter the BIOS setup utility during boot up. In Exit menu, please select "Load Default Settings" and press
7. Select "Exit Saving Changes" and press
8. Now, system is booting up with new BIOS.
»Update BIOS under Windows® Vista™
Step1: Please right click AFUWIN.exe
Step2: Click "Run as administrator".
If you encounter problems while updating the new BIOS, DO NOT turn off your system since this corrupt BIOS might cause your system failed to boot up. Just repeat the process, and if the problem still persists, update the original BIOS file. If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need service.
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