After updating BIOS, Windows 7 won't start up !?

Please, I need urgent help.
On my brand new ASUS laptop, the automatic ASUS update downloaded and installed the latest BIOS version for Windows. During the process the pop-up windows appeared saying something like "Don't forget to load the default BIOS setting after reboot..."

After reboot, all I got was black screen with a blanking line like in DOS program.
I rebooted again, used ESC, entered BIOS but theres no such option there as load defualt BIOS..
I saved and exited BIOS and still WIndows won't load up.
Please, what should I do ???

entered BIOS but theres no such option there as load defualt BIOS..

Did you use the option?

I couldn't find any such option..
Am I doing the right thing, pressing esc after reboot and then enter setup.. but there is no Load Default Bios anywhere..

Check for F9 option, this is not your BIOS below.

I thought that was BIOS..
Many thanks theog, I'll try with F9 and report right back..

tried F9 but it only shows black screen & ASUS brand screen loads again with no Windows loading after that..
tried F2 as well, but that brings me back to that screen which You said is not BIOS

What is the exact model laptop?

Asus a73ta

Read.

ASUSTeK Computer Inc. -Support- Troubleshooting A73TA

You said is not BIOS

Where did I say not BIOS?