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Can i still install windows 8 if my uefi does not have secure boot?


tootal2

New Member
Posts
13
#1
I just updated my bios to uefi to get secure boot. but windows 8 compatibility tool still says my bios does not support have secure boot. Can i still install windows 8? I already ordered my upgrade dvd.
 

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System One

  • OS
    windows 7
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    home made
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    i5 2500k
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    gigabyte z68x-ud3h-b3
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    16 1600
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    gtx 560

Kat

Banned
Posts
142
#2
Yes, you can.

My UEFI BIOS doesn't support secure-boot either, and W8 installs and runs without a hitch.

Go for it, and good luck!! :cool::geek:
 

My Computer

System One

  • OS
    Windows 8 Enterprise 64-bit (7 Ult, Vista & XP in V-Box)
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cluberti

Cat herder
VIP Member
Pro User
Redmond

Posts
651
#3
As long as your UEFI is 2.3.1 or newer, and you install from a DVD or FAT32-formatted USB key, you'll be fine. If you have the option to disable the Compatibility Support Module (CSM) in your UEFI options, do so - you'll get even faster boot times :).
 

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System One

  • OS
    Windows 8.1 x64
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    PC/Desktop
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    Custom
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    Intel Core i7 4790K @ 4.5GHz
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    Asus Maximus Hero VII
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    32GB DDR3
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    Nvidia GeForce GTX970
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    1x Samsung 250GB SSD
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    Fractal Design Define R4
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    Noctua NH-D15

tootal2

New Member
Posts
13
#4
I spent about 2 hours making a usb boot drive with windows 98 files to update my bios. I
was hoping i didnt do all this work for nothing. It does boot faster with uefi.
gigabyte does not says what number the uefi is. Will gigabyte update there uefi to 2.3.1?

I got to wait till ceton puts out a windows 8 driver before i can upgrade to windows 8


As long as your UEFI is 2.3.1 or newer, and you install from a DVD or FAT32-formatted USB key, you'll be fine. If you have the option to disable the Compatibility Support Module (CSM) in your UEFI options, do so - you'll get even faster boot times :).
 

My Computer

System One

  • OS
    windows 7
    System Manufacturer/Model
    home made
    CPU
    i5 2500k
    Motherboard
    gigabyte z68x-ud3h-b3
    Memory
    16 1600
    Graphics Card(s)
    gtx 560
Posts
80
#5
My board still doesn't have a BIOS update for secure boot. Gigabyte will probably provides updates over the coming month.
 

My Computer

System One

  • OS
    Windows 8 Pro
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    Self built
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    Intel i3 3220 @ 3.3Ghz
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    Gigabyte H77M-D3H
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    Kingston Value RAM - 8GB DDR3 1333MHz CAS 9
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    Benq G2420 24" LCD
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    1 x Samsung 256GB 830 SSD
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    Corsair CX 430 v2
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    HAF 912 Advanced
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    Stock - 1 x 12cm, 2 x 20cm
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    Combo with keyboard

Mystere

Power User
VIP Member
Power User
Posts
1,925
#6
I have a Z77X-UD5 with the latest F14 bios, and there is no secure boot. You have to make sure that you boot the install media via UEFI or it will not configure the drive for UEFI.

If your drive is already partitioned, then whether you boot with EFI or not, it won't install a UEFI boot. You basically have to have a clean drive in order to get Windows to convert the drive to a GPT drive, and partition it with the UEFI boot partition and MSR partition.

That means, if you're upgrading, you won't get UEFI support.

If you install and you aren't in UEFI mode (you can find out by running System Information and looking for the BIOS Mode) then it's possible to convert it after the fact, but it's something of a complex process, detailed here:

Moving a Windows 8 legacy installation to UEFI? - Microsoft Community

Unfortunately, Gigabyte's UEFI bios is actually a hybrid BIOS.. it's sort of a UEFI wrapper on top of a normal Award BIOS. This means it doesn't have all the normal UEFU features, like a command shell, or secure boot.

Hopefully the come up with a real UEFI bios soon.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
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    Intel i7 3770K
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    Gigabyte Z77X-UD4 TH
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    Microsoft Natural Ergonomic Keyboard 4000
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    Logitech MX

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