UEFI BIOS can't boot from CD?

Discussion in 'Windows 8' started by Frankincense, Dec 18, 2012.

  1. Frankincense

    Frankincense MDL Novice

    Nov 7, 2012
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    On a new Win 8 laptop I can't boot from a USB flash drive or even a CD unless I turn off secure boot in the BIOS?

    This surely can't be progress?
     
  2. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    Secure boot has nothing to do with going into your BIOS and changing your start up device.

    Secure boot is initialized when starting up Windows 8
     
  3. Frankincense

    Frankincense MDL Novice

    Nov 7, 2012
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    #3 Frankincense, Dec 18, 2012
    Last edited: Dec 18, 2012
    (OP)
    Hmmmm the new Win 8 Laptop I'm looking at won't offer any other devices in the boot menu apart from the Win 8 system HD unless secure boot is disabled.
     
  4. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    Your BIOS is the VERY first thing to boot into after your computer passes its P.O.S.T. You boot Windows 8 after your computer passes its P.O.S.T. and BIOS options.
     
  5. Frankincense

    Frankincense MDL Novice

    Nov 7, 2012
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    Sorry the boot menu does show but just won't offer "any" other devices (CD Flash Drive etc) in the boot menu apart from the Win 8 system HD unless secure boot is disabled.
     
  6. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    As soon as your PC starts, try hitting all the Function keys including the escape and delete keys
     
  7. nasa

    nasa MDL Member

    Dec 2, 2007
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    I think it can, but only to an EFI device. disabling SecureBoot probably enables "legacy" bios boot options.
    If you try to boot a DVD or USB Flash drive which is EFI bootable (e.g Win8 Install), it should work.
     
  8. Flipp3r

    Flipp3r MDL Expert

    Feb 11, 2009
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    It's probably got fast boot features enabled so usb is only partially initialised for keyboard/mouse and no optical.
    things like card reader & usb keys etc won't be seen until your in your OS...
     
  9. Shenj

    Shenj MDL Expert

    Aug 12, 2010
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    If he has Fastboot enabled he doesn't even see anything, it's instantly loading Windows when you enable Fastboot.
     
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  10. 5856898

    5856898 MDL Junior Member

    Aug 18, 2012
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    Nope, you can also enter BIOS config interface even if Fastboot is enabled. After your modify some settings in BIOS, the system will do a full shutdown first....(At least for HP laptops)
     
  11. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    As long as you fully shut down your computer and then remove your battery, fastboot should not be a problem. I would know because I my self have an HP ENVY 17 and even without taking the battery out I can strike esc to go right into my BIOS setup menu.
     
  12. 5856898

    5856898 MDL Junior Member

    Aug 18, 2012
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    Windows 8 is shipped with legacy disabled as default. so if you want to boot from a non-efi bootable media, just enable legacy support in BIOS.
     
  13. 5856898

    5856898 MDL Junior Member

    Aug 18, 2012
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    Yes, that's working as design for HP Laptops. you don't need to take your battery out. just hit the hot key during POST.
     
  14. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    And that my friend is why I love HP :cool:
     
  15. maly70

    maly70 MDL Junior Member

    Jan 12, 2008
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    this is right mate, should enable Legacy bios instead of having UEFI bios will solve the problem