You can't "update" to an older Bios version (just tried)... I have 2.04 and tried to downdate to 1.13... At least from Windows using Winflash app (that exe from site).
The posted problem is one of an unknown pile of problems. Mine is not booting from hdd after installing Windows (W7 Home premium licensed retail) but is ok with Linux.. In Bios menu, in the security tab, the hard drive is Frozen and the only available option is Administrator password...
If I choose UEFI BIOS, the ODD is blocked due to security settings (can't do anything about that), or (sometimes) i have no bootable device...
This is the biggest crap ever seen..