How to solve if U can't entry BIOS in Asus :
is Easy n so Simple.. but it's very Hard if U don't know the way..

Here’s how to do it.
By default, a Windows 8/8.1 shutdown is not a real shutdown. Instead, it is hybrid shutdown where contents of memory are saved to disk. This allows for a faster startup. However, turning on the PC after a hybrid shutdown does not allow for pressing F1 or F12 during startup.
There are several ways to enter Setup Utility (F1) or the Boot Menu (F12) on a Microsoft Windows 8/8.1 PC as explained below:

1. Press and hold the Shift key while selecting the Shutdown option in Windows 8. This will make the PC perform a full shutdown instead of a hybrid shutdown. Then F1 or F12 can be pressed successfully during startup.
2. Select Restart instead of Shutdown. Then F1 or F12 can be pressed successfully during startup.
3. Disable the fast startup option in Control Panel -> Hardware and Sound -> Power Options -> Choose what the power buttons do. 

intinya :
BIOS tidak bisa diakses karena tombol Esc / F2 c.s. tidak berfungsi hal tersebut karena laptopnya dalam kondisi shutdown abal-abal ( hybrid shutdown ).
agar shutdownnya sempurna, caranya : tekan.. shift + shutdown.

coba nyalakan powernya lalu tekan Esc / F2.
insyaAllah... mudah"an bisa.