SOLVED: How to Enter to BIOS on a Windows 8 Asus T100 Tablet – Up & Running Technologies, Tech How To’s

SHORT ANSWER: The Asus T100 is a normal PC and so you can enter the BIOS by rapidly pressing the F2 key on boot up.

LONG ANSWER: To be precise the Asus T100 and most newer computers have scrapped the old, small and slow BIOS (Basic Input Output System) in favour of the new Intel and Microsoft designed UEFI (Unified Extensible Firmware Interface).  The UEFI standard is fast; so fast that you likely will have trouble catching the F2 option on boot and be forced to try several times to get into the UEFI.

Give this problem you could choose to into the OS, go to Advance Startup options, then choose to reboot to the “UEFI Firmware Settings”.