How do I turn off secure boot or access BIOS settings (UEFI)

Your bios may be set to AUTO detect. This means it looks at the first boot device and decides whether to present you with UEFI bios or LEGACY(MBR style) bios. So its determined by the contents of your hard drive or other boot device. Once set to AUTO and if you have a UEFI drive then you wont be allowed to alter settings, EXCEPT by using the OS after you boot. The OS should provide you with UEFI style BIOS adjustments using a program.

I would recommend resetting your BIOS back to the defaults.

1. Turn your computer on and use F2 to access the BIOS.
2. Using the arrow keys, navigate to the Exit menu.
3. Look for the option (or similar) Load Defaults and press Enter.
4. Press F10 to save and exit the BIOS.
5. Your laptop should revert to the default BIOS and boot order settings.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/aaron_eefc4ebb3e929c59

please check bios boot type I sujspect it may be booting for UEFI rather than for legacy boot. Windows 8 will boot on UEFI boot type but windows 7 will need legacy bios type of boot up settings in bios
see
http://blogs.technet.com/b/askcore/archive/2011/05/31/installing-windows-7-on-uefi-based-computer.aspx

When it boots back to the uefi bios page there should be some settings tab/s that you can change the boot from uefi only to normal the only other things i can suggest if you dont want to go into those settings to far for whatever reason , when it boots into your bios from uefi mode press f10 or whatever the defualt settings button may be for your bios, make sure you save and exit then aoll should be fine , FAIL THE ABOVE , ITS TIME FOR A BIOS UPDATE !!

On systems with Windows 8 pre-installed, you can access the UEFI (BIOS) setup screens from the Windows 8 boot menu:

1. Press the Windows key + C, or swipe in from the right edge of the screen to open your Charms.
2. Click Settings.
3. Click Change PC Settings.
4. In PC Settings, select General.
5. Under Advanced startup, click Restart now. The system will restart and show the Windows 8 boot menu.
6. In the boot menu, select Troubleshoot.
7. In the Troubleshoot menu, select Advanced options.
8. In the Advanced options menu, select UEFI Firmware Settings.
9. Click Restart to restart the system and enter UEFI (BIOS).

How to access BIOS on an ASUS laptop

you have to change the settings in bios setup. normally press f2 or f10

restart the computer HOLD the keys CTRL+F11 OR F12 depend of your model, and restore to the factory defaulty, and try it again.
God bless you

Check if UEFI is disabled after flash with newer BIOS version. If you flash BIOS the default settings gets loaded again. Check hard disk settings and boot settings.

If you t sure the USB and HDD work fine.
Go to bios setting,
Some motherboard has USB setting,
1, Mark USB to floppy, that make it in bootable function.
2', if installing window 7 and up, make sure HDD set to sata or ahci
3, if you see there is CSM in bios, mark it on enable, support legacy. B/c your USB is set to floppy not uefi.
4, save and exit. Reboot the PC and chose boot from USB.

Depending on the motherboard,
Some are need to choose boot from uefi USB,
Some are need to choose boot from Sata USB.
Just try which one works for u.

enter your Bios then Advanced settings there should be an option to turn of onboard graphics or switch to pci..