Updating ASUS BIOS on Windows 7 64bit
From the motherboard manual:
http://www.asus.com/Motherboards/AMD_AM2Plus/M2N68AM_PLUS/#download Look under Manual
To update the BIOS using EZ-Flash 2:
- Insert the USB flash disk that contains the latest BIOS file to the USB port, then launch EZ Flash 2 by pressing Alt + F2 during POST or by entering the BIOS > Go to Tools menu > Select EZFlash 2 and press enter to enable it.
Remember to use a flash drive that is formatted FAT/FAT32 and also rename the file to a short file name such as 1804.ROM Also you have to extract the .ROM file from the .zip file the BIOS downloads from, EZ-Flash does not support ZIP files.
Highly recommend backing up the current BIOS by hitting the B key, name it something like 0210.ROM, so you can go back to it if needed.
Ok this thread is very old but ive had also problems with a BIOS update. Error Message: Boot Block of File invalid
Solution: NTFS causes problems...Use a USB Stick formatted with FAT32 on older Mainboards. That work for sure.