Flash Bios : Acer Extensa 4420 - Windows 7 x64

I cant flash my acer extensa 4420 because im running windows 7 x64. I am getting "Open flash.sys fail" when i run the .exe as admin.    Does someone know an easy and sure way to flash my bios ?
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Dr. KlahnPrincipal Software EngineerCommented:
Is there an important reason that requires flashing the BIOS to a new version?

A considerable number of problems coming to EE in the hardware area are related to bad or failed BIOS updates, either of which can effectively turn a normally operating computer into an unretrievable brick that must be shipped back to the manufacturer.  Unless there is a very good reason to update the BIOS of your system, imho, avoid doing it.
One resourceful soul figured out how to make a bootable CD to do the BIOS update:

nobusbiljart fanCommented:
you can even do it from usb :  http://www.biosflash.com/e/bios-boot-usb-stick.htm
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