UEFI boot help

[yiptw89]

I've encountered some problems to run UEFI boot from USB to install Windows 8.

I'm using the following setup:
Intel Core i5-3570K + Asrock Z77 Extreme6
BIOS Version 2.60
Genuine Windows 8 files copied into ADATA S102 Pro 16GB USB Flash Drive using Windows 7 USB/DVD Download Tool

Below as you can see, the boot options does not have UEFI boot from my flash drive.

However, I've tried it on another setup:
Intel Celeron G1610 + MSI Z77A-G45
BIOS Version 2.A
Genuine Windows 8 files copied into ADATA S102 Pro 16GB USB Flash Drive using Windows 7 USB/DVD Download Tool (same flash drive used)

In this setup with the same flash drive used, the boot options allows me to choose UEFI boot from my flash drive.

Any kind souls can help what should I do to enable UEFI boot for the first setup?

 

[MacClipper]

UEFI boot from USB

Tried pressing F11 during POST for the Boot Menu yet?

 

[yiptw89]

Tried pressing F11 during POST for the Boot Menu yet?

Yes.

It shows "No boot device detected".

 

[MoneyFace =p]

Did you see any bootsect error occurring at the end of Windows 8 files transfer on the Windows 7 DVD USB Tool into the thumbdrive?

And did that flash drive actually boots successfully on your Celeron machine?

 

[yiptw89]

Did you see any bootsect error occurring at the end of Windows 8 files transfer on the Windows 7 DVD USB Tool into the thumbdrive?

I've not encountered any errors during the transfer of files. I've used this flash drive to install Windows 8 successfully on the 2nd setup without any problems.

 

[MoneyFace =p]

I've not encountered any errors during the transfer of files. I've used this flash drive to install Windows 8 successfully on the 2nd setup without any problems.

Try disabling ASRock Fast Boot?

 

[eminus]

try disabling fast boot and also put the usb in a non usb3 slot and lastly put the boot priority to usb...then cross your finger and see if it works out

 

[terryhoho]

subscribed. TS post solution thread after you successfully did it alright.

 

[wideCDMA]

I am the same MB... go to exit menu... Load UEFI default.... save and exit then boot the USB UEFI..

 

[tuckloong]

I am the same MB... go to exit menu... Load UEFI default.... save and exit then boot the USB UEFI..

Ya me did that on a Asrock z77 pro 3 too

 

[yiptw89]

try disabling fast boot and also put the usb in a non usb3 slot and lastly put the boot priority to usb...then cross your finger and see if it works out

Try disabling ASRock Fast Boot?

Disabling Fast Boot allows me to boot from USB in non-UEFI mode. UEFI boot is still not visible. Tried on USB 2.0 ports, same result also.

I am the same MB... go to exit menu... Load UEFI default.... save and exit then boot the USB UEFI..

Ya me did that on a Asrock z77 pro 3 too

I did that also, but still not visible.

 

[yiptw89]

Tried using another USB flash drive, Kingston DataTraveler 100 G2.
Still don't see the UEFI USB boot option.

On the 2nd setup, it still works.

Are there any other settings I have to change in the Asrock BIOS?

 

[xonix]

Does this help?

How to Create a Bootable UEFI USB Flash Drive for Installing Windows 7 and Windows 8

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums

 

[wideCDMA]

Disabling Fast Boot allows me to boot from USB in non-UEFI mode. UEFI boot is still not visible. Tried on USB 2.0 ports, same result also.





I did that also, but still not visible.

Try using different port of usb ?

 

[sbladerz]

hi, i had the same problem as u.
what i did was to attached the thumbdrive first before booting up the system.
then my system would autorun from the thumbdrive.
hope it helps.

 

[tuckloong]

Disabling Fast Boot allows me to boot from USB in non-UEFI mode. UEFI boot is still not visible. Tried on USB 2.0 ports, same result also.





I did that also, but still not visible.

wa sian half half...u need a dvd of win 8 ISO? can burn for ya

 

[MacClipper]

Just dug out my Win8 Install USB flashstick to try out on my present 990FX Extreme9 test mobo, seems OK.

Maybe email the TW HQ and ask them for support...

 

[yiptw89]

Just dug out my Win8 Install USB flashstick to try out on my present 990FX Extreme9 test mobo, seems OK.

Maybe email the TW HQ and ask them for support...

May I know is your USB flash drive formatted to FAT32 or NTFS?

 

[yiptw89]

Found the solution: Getting secure boot and efi working in Windows 8

It seems that only if the flash drive is formatted to FAT32, then it will be able to boot from USB in UEFI mode. It doesn't support booting NTFS formatted drives in UEFI mode.