Please help - unable to boot to bios - no UEFI option

Hi,

After upgrading to windows 8 64bit Pro from windows 7 64bit Pro i'm unable to access the BIOS.

I have searched the web and the general consensus seems to be, you need to do two things to correct the issue:

1. Disable fast start-up

2. select advanced start up under 'general settings', restarting and then choosing UEFI

I have tried both of these options and neither has helped. Disabling fast start-up seems to have made no obvious change. When using advanced start up, Selecting the UEFI option under advanced options is not possible, as it doesn't exist!

System config is below:

MB: ASUS P8P67 EVO
CPU : intel i5-2500K
GPU: AMD Radeon 7970
MEM : 2x4GB
C: 240GB SSD - OCZ Agility 3
D: 240GB HDD - WD
E: 600GB HDD - WD
F: DVD-RW
X: 240GB SSD - OCZ Agility 3


I'm going crazy trying to resolve this, jumping through hoops to access settings on my own computer, which used to be accessed by pressing ONE button while booting! Great way to upset PC enthusiasts. 


 



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Hi,

 

Check your motherboard manual for BIOS features like RAPID START or similar....

 

My motherboard manual states that one of the settings (fastest) when used with Win 8, will make entering UEFI not possible without resetting the bios to default by pushing the reset or clear button on the motherboard, or something like that...

 

I never enabled that setting because I didn't want to get into a jam like you describe...I just used the fast setting, or disabled, so I can't be more specific.

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Hi, 

Thanks for your attempt to help. I have my Motherboard manual in front of me. Its fairly current and is pretty well featured. It does not appear to have a bios 'RESET' function. 

I have downgraded the BIOS in the hope that would force the PC to prompt for BIOS boot options, unfortunately it doesn't. 

There is another feature that requires me to boot from DVD or USB however I need to access the bios to enable that function. 

so, unfortunately I'm no further forward. 

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Hi,

 

I don't have a current design ASUS MB, but two things I thought of...Can or did you reinstall the software to enable you to enter bios from within windows?

 

I also found this link to clear your CMOS (Reset Bios)...I don't know if it will be of any benefit or not.

 

http://support.asus.com/Troubleshooting/detail.aspx?SLanguage=en&m=P8P67%20EVO&p=1&s=39&os=&hashedid=erWGi4vbeZa8oxg8&no=1723

 

 

On page 3-34 of the PDF manual for your board are tips concerning accessing Bios by booting with the DVD that came with your MB...this may oy may not be useful.

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Thank you for your persistence!

Even though the link you sent states that there is a CMOS jumper, there isn't one on my motherboard. Good news is that is because its actually an external Micro-switch on the backplate, hence the reason I couldn't find it!

Unfortunately even after resetting the CMOS, and booting to a request to 'press F1 to enter setup' on doing so the screen went blank and i was presented with the windows 8 boot screen again! the damn thing took control!

so no change

unfortunately your other suggestion is not possible as i have no option to boot using a DVD, it needs enabling in the bios, which I can't access!!! 

I have already used the ASUS software available to downgrade the BIOS, there is no option to access the BIOS settings from within windows however. 

Thank you for your continued help. 

My current situation remains:

- unable to boot from DVD or USB
- unable to access BIOS

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Hi,

See Troubleshooting section
http://support.asus.com/knowledge.aspx?SLanguage=en&p=1&m=P8P67

Check with ASUS support and their forums.

ASUStek Support
http://support.asus.com/

ASUStek Forums
http://vip.asus.com/forum/default.aspx?SLanguage=en-us

ASUStek Drivers
http://support.asus.com/download/download.aspx?SLanguage=en-us

Hope this helps.

Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

Rob Brown - past Microsoft MVP - Windows Insider MVP 2016 - 2021
Microsoft MVP Windows and Devices for IT 2009 - 2020

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Something I just thought of....Try unplugging your Win 8 drive and see if you can get in that way.

 

Also,  My understanding is that there is a Utility that is or can be installed on your computer to access your bios from within Windows...not to flash bios, but to actually change it's settings

 

That is what I was wondering if you still have access to...

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Thanks for this, I have had a conversation with Microsoft Support and the message was clearly : contact ASUS. 

I can appreciate why, as the BIOS is obviously ASUS, but the infuriating thing is that there was no issue before upgrading to windows 8. In my view windows 8 has restricted access to my BIOS.

I have gone so far as to remove my OS drive, and reset the cmos. When booting I have the same issue. blank screen upon pressing F1 to 'access setup. so whatever happened with UEFI upon windows 8 upgrade seems permanent. 

downgrading / upgrading the BIOS does nothing. ( I can do this from within windows 8)

Most frustrating situation I have encountered in years. 




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Hi,

 

Is it possible that now that you have reset your bios that your monitor is connected to the wrong video output?

 

This is something that happened to me while updating drivers...I was connected to the AMD output, and that is what the Bios was set to use....After uninstalling the AMD drivers and rebooting...nothing....Black screen...

 

I had to connect the monitor to the motherboards video output to use the onboard Intel Graphics to access the Bios and get things back to normal....then hook back up to the AMD...

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Hi,

The BIOS controls the OS load and not the other way around. 

Have you actually asked ASUStek Support and their forums?

Did you do a clean install with UEFI active? These are the methods when you resolve
the BIOS issue.

Check with your System Maker or Motherboard Maker for any special instructions
for the UEFI. Windows has to be installed with the UEFI active.

How to Install Windows 8 Using the "Unified Extensible Firmware Interface" (UEFI)
http://www.eightforums.com/tutorials/2328-uefi-unified-extensible-firmware-interface-install-windows-8-a.html

How to Create a Bootable USB Flash Drive for UEFI in Windows 7 and Windows 8
http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html

How to Enable or Disable Secure Boot in UEFI
http://www.eightforums.com/tutorials/17058-secure-boot-enable-disable-uefi.html

Windows and GPT FAQ

http://msdn.microsoft.com/en-us/library/windows/hardware/gg463525.aspx

Using GPT Drives

http://msdn.microsoft.com/en-us/library/windows/hardware/gg463524.aspx

Hope this helps.


Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle <- Mark Twain said it right!





Rob Brown - past Microsoft MVP - Windows Insider MVP 2016 - 2021
Microsoft MVP Windows and Devices for IT 2009 - 2020

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Last updated November 17, 2020 Views 10,877 Applies to: