Windows 8 and 8.1 Forums


Win8 Prevents BIOS Access

  1. #11


    Posts : 1,925
    Windows 8.1 Pro


    Quote Originally Posted by stealth2920 View Post
    No I am using the bios. When I had fast start enabled it would bypass the area where you could select to enter the bios. Once disabled it boots normally like it did in Windows 7. Obviously boots a little slower with fast start up disabled, but no big deal and allows me to enter the bios if I need to change anything. My system overclocked so I occasionally enter the bios to make changes.
    I can't understand how fast boot would cause that to happen. The boot process is the same regardless. Fast boot is a mini-hibernation process, but the computer still has to run through its normal POST before it boots, and that should let you into the BIOS.

      My System SpecsSystem Spec

  2. #12


    Quote Originally Posted by topgundcp View Post
    You have quite a nice system compared to a lot of people in this forum. You don't need to change anything, your system is quite new. Having said that, don't you think people in this Forum won't be screaming if Windows 8 won't allow them to access the BIOS in their PC's ? Windows 8 does not even start after your BIOS finish posting. So the problem may be with your keyboard, maybe the DELETE key on your keyboard is bad, so I would suggest to swap the keyboard, preferably with a PS2 and the reason I said that because last month, a friend of mine brought his PC with an ASUS MB over my house to help him installing Windows 8 and I used my USB keyboard and guess what ? I could not get into the BIOS. We finally use an old PS2 and everything worked.

    Since you upgraded Windows 8 from Windows 7, God knows what's happening !!! Microsoft states that you can upgrade from Windows 7 but provided your Windows 7 is completely clean and all drivers are up to date in the first place. It's always advisable to backup your data, trash everything and do a fresh, clean install. You'll be surprised that how fast your PC flies.

    In addition, make sure before you do the above, go to ASUS site and check if there's any new BIOS for your MB then update it first and also when you install Windows 8, use a network cable and plug directly to your router so that Windows can update all the drivers for your PC.

    Hope this helps.
    Thank you for your suggestion, topgundcp. I did a CLEAN INSTALL of Win8 (= the RESET option), but I still cannot access my BIOS Setup!! I did connect my computer directly to my Internet Modem.
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  3. #13


    Posts : 2,156
    Win7 Ult on DIY; Win8 Pro on MBP/Parallels; Win7 Ult on MBP/Boot Camp; Win7 Ult/Win8 Pro on HP


    Did you see the possible solution I posted above? Try turning fast startup off.
    Last edited by znod; 23 Jan 2013 at 07:42.
      My System SpecsSystem Spec

  4. #14


    West Auckland
    Posts : 107
    Windows 8 Pro Pack x64


    If you are being prevented from entering BIOS, I find it hard to believe the OS has anything to do with it as the BIOS is what initiates it, meaning BIOS comes first. How can it be prevented by something it hasn't loaded yet?

    If it was me, I would disconnect the hard drives and start the computer to see what happens.
    If I go no where with that; leaving the hard drives disconnected I would then clear the CMOS with the jumper on the motherboard. and try again.

    The BIOS doesn't depend on the OS, it's the other way around. The BIOS WILL load without an OS and you should be able to access it, especially is you reset it by clearing the CMOS.

    Once you get into the BIOS, turn off the computer, reconnect the hard drives, turn on and get into the BIOS and configure everything accordingly.

    It's possible you BIOS is set for quick boot (nothing to do with the OS, it shortens the POST time), clearing the CMOS will disable it (or should).
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  5. #15


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    If you are being prevented from entering BIOS, I find it hard to believe the OS has anything to do with it as the BIOS is what initiates it, meaning BIOS comes first. How can it be prevented by something it hasn't loaded yet?
    That's what I thought from post #4 on previous page but come to think of it, a few years back when I did a lot of heavy OCing's and I used EVGA MB, came with an application that you could install as a Windows Application. This application will allow you to alter BIOS settings from Windows and will take effect on next reboot.

    Having said that, I think he might have some application modifying the BIOS after Windows booted up or perhaps, the possibility might be when you turn on Fast boot and Windows could modify the BIOS.

    So OP, when you have an opportunity, let us try to boot up Windows, turn off Fast Boot option then set it to Safe Boot followed by a reboot and do it at least 2 times to see if that's a possibility and of course don't forget to keep tapping on DEL key.
      My System SpecsSystem Spec

  6. #16


    Posts : 2,156
    Win7 Ult on DIY; Win8 Pro on MBP/Parallels; Win7 Ult on MBP/Boot Camp; Win7 Ult/Win8 Pro on HP


    Excellent thinking. Same is true on my ASUS P8P67 Deluxe Rev B3. Forgot about it; never let the Windows app change anything though. The app it is used, among many other things, for doing "software" OCing.
    Last edited by znod; 23 Jan 2013 at 05:08.
      My System SpecsSystem Spec

  7. #17


    West Auckland
    Posts : 107
    Windows 8 Pro Pack x64


    Quote Originally Posted by topgundcp View Post

    Having said that, I think he might have some application modifying the BIOS after Windows booted up or perhaps, the possibility might be when you turn on Fast boot and Windows could modify the BIOS.

    So OP, when you have an opportunity, let us try to boot up Windows, turn off Fast Boot option then set it to Safe Boot followed by a reboot and do it at least 2 times to see if that's a possibility and of course don't forget to keep tapping on DEL key.
    Exactly right.

    When I enabled fast boot in the Toshiba utility on my laptop, it altered the BIOS setting and it prevented me from getting into BIOS because it skipped POST completely. Logging in and disabling Fastboot using the Toshiba utility fixed the problem.

    On a Desktop, clearing the CMOS should do the same thing if you can't disable it anywhere else.
      My System SpecsSystem Spec

  8. #18


    UPDATE:
    Two weeks ago, I installed Win8 in my two-year-old computer. I have tried countless procedures to try to regain access to my BIOS Settings. Finally yesterday, I tried to reset my BIOS to factory settings as recommended in ASUS online troubleshooting, but I still could not access my BIOS Settings to complete that procedure. NOW MY COMPUTER WILL NOT DO ANYTHING!! Boat anchor anyone??

    Today, Microsoft Win8 Technical Support said that they cannot help me because my motherboard is probably NOT compatible with Win8. Thay said that their Pre-Install Compatibility Tests do NOT check our computers' hardware.

    Later today, ASUS replied to my earlier email to say that the P6X58D-E may NOT be compatible with Win8.

    Has anyone installed Win8 successfully with the ASUS P6X58D-E or similar motherboards, and then been able to access the BIOS Settings?

    If not, be warned -- I think that I will have to buy a new motherboard with the new UEFI-BIOS, and a new CPU because of my attempt to use Win8 with this motherboard!!
      My System SpecsSystem Spec

  9. #19


    West Auckland
    Posts : 107
    Windows 8 Pro Pack x64


    Quote Originally Posted by pauldknight View Post
    UPDATE:
    Two weeks ago, I installed Win8 in my two-year-old computer. I have tried countless procedures to try to regain access to my BIOS Settings. Finally yesterday, I tried to reset my BIOS to factory settings as recommended in ASUS online troubleshooting, but I still could not access my BIOS Settings to complete that procedure. NOW MY COMPUTER WILL NOT DO ANYTHING!! Boat anchor anyone??

    Today, Microsoft Win8 Technical Support said that they cannot help me because my motherboard is probably NOT compatible with Win8. Thay said that their Pre-Install Compatibility Tests do NOT check our computers' hardware.

    Later today, ASUS replied to my earlier email to say that the P6X58D-E may NOT be compatible with Win8.

    Has anyone installed Win8 successfully with the ASUS P6X58D-E or similar motherboards, and then been able to access the BIOS Settings?

    If not, be warned -- I think that I will have to buy a new motherboard with the new UEFI-BIOS, and a new CPU because of my attempt to use Win8 with this motherboard!!
    At this stage I'm willing to look past your OS and dig deeper:

    You cannot Brick a motherboard by installing an operating system, no matter what.

    A motherboard will work and POST even with a hard drive NOT attached, it has no impact. The BOIS is stored on a ROM chip, which in turn stores its setting on an erasable CMOS memory.

    The ONLY way to brick a motherboard is by botching a BOIS update, even then you may still recover.

    Software installed on a system drive cannot and will not prevent BIOS access.

    Software that interacts with the BOIS may change setting in the BIOS, such as Quick Boot, and clock rates, etc. But when the computer is turned on, the BIOS is in full control.

    So...

    If you cannot get into the BIOS, there must be something wrong somewhere other than the operating system.

    Find the evidence; remove the hard drive and see if it POST's.
    If it does not; logic tells us that the BOIS has a problem. My course of action to remedy a defective BIOS would be to flash it by downloading an updated version of the BIOS and the utility to flash it from a bootable CD.

    I say all this based on your firm belief the the motherboard is not POSTing and "doing nothing".

    I would also suspect graphics adapter in the even of a black screen at boot with nothing at all displayed ever.

    Tell me: Did you erase the CMOS using the jumper on your motherboard? If you have not done this yet, please do it and report back.
      My System SpecsSystem Spec

  10. #20


    Quote Originally Posted by pauldknight View Post
    UPDATE:
    Two weeks ago, I installed Win8 in my two-year-old computer. I have tried countless procedures to try to regain access to my BIOS Settings. Finally yesterday, I tried to reset my BIOS to factory settings as recommended in ASUS online troubleshooting, but I still could not access my BIOS Settings to complete that procedure. NOW MY COMPUTER WILL NOT DO ANYTHING!! Boat anchor anyone??

    Today, Microsoft Win8 Technical Support said that they cannot help me because my motherboard is probably NOT compatible with Win8. Thay said that their Pre-Install Compatibility Tests do NOT check our computers' hardware.

    Later today, ASUS replied to my earlier email to say that the P6X58D-E may NOT be compatible with Win8.

    Has anyone installed Win8 successfully with the ASUS P6X58D-E or similar motherboards, and then been able to access the BIOS Settings?

    If not, be warned -- I think that I will have to buy a new motherboard with the new UEFI-BIOS, and a new CPU because of my attempt to use Win8 with this motherboard!!
    Ways to access BIOS settings (Windows 8, Non-UEFI):
    -If W8 is already booted, restart! It will use legacy start-up, and shows you the key to enter BIOS.
    -If you don't want to do restart to get in to BIOS, disable Fast Start-up!
      My System SpecsSystem Spec

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Win8 Prevents BIOS Access
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