How to use WinFlash to flash BIOS in system:
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Just follow 5 steps as below: 

1.Download the package from the website about BISO flash package;
2.Open the BIOS flash package with right click, choose 'Run as administrator' (attention: double click the package can not run this program in vista). 
3.Windows pop-up WinRAR self-extracting window, just click 'Install' button;
4.Click 'Flash BIOS' button;
5. There is a warning window to let user make sure system power, flash information, etc. Click 'OK' button, flash BIOS will run automatically, please wait until BIOS Flash finished. After BIOS updated, system will Re-boot automatically. Re-flash BIOS step complete.