Solved Secure Boot and Windows 8 Activation

Steve C

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Power User
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275
Location
UK
I'm just about to experiment setting up Secure Boot on my Gigabye GA-Z77X-UD5H motherboard running Windows 8 Pro Media Centre edition 64bit. Do I need to reactivate Windows 8 if I enable the secure boot settings in the BIOS? Does it matter whther secure boot is enabled when upgrading to Windows 8.1?
 

My Computer

System One

  • OS
    Windows 8.1 64 bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home Build
    CPU
    Intel i3570K
    Motherboard
    Gigabyte GA-77X-UD5H
    Memory
    16 GB
    Graphics Card(s)
    Sapphire R9 280X Toxic
    Sound Card
    Realtek on motherboard
    Monitor(s) Displays
    Viewsonic VP2770
    Screen Resolution
    2560 x 1440
    Hard Drives
    Intel 520 180GB SSD
    Seagate 2T HDD
    Seagate external 1T USB HDD
    PSU
    XFX 850W
    Case
    Nanoxia Deep Silence 1
    Cooling
    Noctua NH-D14
    Keyboard
    Microsoft
    Mouse
    Microsoft
    Internet Speed
    50Mbps
    Browser
    Chrome

Berton

Member
Power User
Messages
593
Location
Forever West
First question, probably not, haven't changed the hardware.
Second question, No, just have to be able to access the Store to get the download and install.
 

My Computer

System One

  • OS
    WinXP, WinVista, Win7, Win8.1, Win10, Linux Mint 20
    Computer type
    PC/Desktop
    System Manufacturer/Model
    2 Customs and 12 OEM/Brands
    CPU
    AMD and Intel

genet

New Member
Guru
Messages
879
Tip   Tip
If you are installing Windows 8/10 from a USB flash drive in UEFI Boot Mode, then you need to have a UEFI Boot Mode compatible Windows 8/10 USB flash drive.

Here is more info: UEFI Boot Mode (installing using the GPT partition style) and Legacy BIOS Boot Mode (installing using the MBR partition style). -> link


Note: Windows 8/10 64-bit installation media is compatible with UEFI Secure Boot enabled.

Gigabyte motherboard with UEFI firmware. How to install Windows 8/10 64-bit in UEFI Boot Mode.

Select the following settings (marked with red color) in the Gigabyte UEFI firmware, if you want to install Windows 8/10 64-bit in UEFI Boot Mode.

Windows 8/10 Features
Allows you to select the operating system to be installed.
- Other OS (Default)
- Windows 8/10
- Windows 8/10 WHQL

CSM Support
Enables or disables UEFI CSM (Compatibility Support Module) to support a legacy PC boot process.
- Enabled - Enables UEFI CSM. (Default)
- Disabled - Disables UEFI CSM and supports UEFI BIOS boot process only.
This item is configurable only when Windows 8/10 Features is set to Windows 8/10 or Windows 8/10 WHQL.

LAN PXE Boot Option ROM
Allows you to select whether to enable the legacy option ROM for the LAN controller. (Default: Disabled)
This item is configurable only when CSM Support is set to Enabled.

Storage Boot Option Control
Allows you to select whether to enable the UEFI or legacy option ROM for the storage device controller.
- Disabled - Disables option ROM.
- UEFI Only - Enables UEFI option ROM only.
- Legacy Only - Enables legacy option ROM only. (Default)
This item is configurable only when CSM Support is set to Enabled.

Other PCI Device ROM Priority
Allows you to select whether to enable the UEFI or Legacy option ROM for the PCI device controller other than the LAN, storage device, and graphics controllers.
- Disabled - Disables option ROM.
- UEFI Only - Enables UEFI option ROM only. (Default)
- Legacy Only - Enables legacy option ROM only.
This item is configurable only when CSM Support is set to Enabled.

Network Stack
Disables or enables booting from the network to install a GPT format OS, such as installing the OS from the Windows Deployment Services server. (Default: Disabled)

Secure Boot
Enables or disables Secure Boot function.
- Enabled - Enables Secure Boot.
- Disabled - Disables Secure Boot.
This item is configurable only when Windows 8/10 Features is set to Windows 8/10 or Windows 8/10 WHQL.

Secure Boot Mode
Define the Secure Boot mode.
- Standard
- Custom
This item is configurable only when Windows 8/10 Features is set to Windows 8/10 or Windows 8/10 WHQL.

GIGABYTE - Windows 8 Features.png

Note: You do not need to change the boot order of drives in your UEFI firmware settings.
- Connect your Windows 8/10 64-bit USB flash drive (Note: FAT32 file system) or insert your Windows 8/10 64-bit DVD.
- Restart the computer.
- Press the correct key to enter the boot menu (for example, Asus F8 and Gigabyte F12).
- Select to boot from the "UEFI: USB/DVD device name".

After the Windows 8/10 64-bit installation is completed, you can check if Secure Boot option is enabled in the UEFI firmware. Run the following command as administrator from the command prompt.

powershell confirm-SecureBootUEFI

The result should be True.

Microsoft designed Secure Boot to protect the computer from low-level exploits and rootkits and bootloaders. A security process shared between the operating system and Unified Extensible Firmware Interface (UEFI, replacing the BIOS), Secure Boot requires all the applications that are running during the booting process to be pre-signed with valid digital certificates. This way, the system knows all the files being loaded before Windows 8/10 loads and gets to the login screen have not been tampered with.

If a bootloader has infected your computer and it tries to load during the boot-up sequence, Secure Boot will be able to undo all the changes and thwart the attack. Having Secure Boot means it is that much harder for attackers to try to compromise the start up sequence.
 
Last edited:

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

Steve C

Member
Power User
Messages
275
Location
UK
Thanks. I've enabled Secure Boot as described above and all works fine!
 

My Computer

System One

  • OS
    Windows 8.1 64 bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home Build
    CPU
    Intel i3570K
    Motherboard
    Gigabyte GA-77X-UD5H
    Memory
    16 GB
    Graphics Card(s)
    Sapphire R9 280X Toxic
    Sound Card
    Realtek on motherboard
    Monitor(s) Displays
    Viewsonic VP2770
    Screen Resolution
    2560 x 1440
    Hard Drives
    Intel 520 180GB SSD
    Seagate 2T HDD
    Seagate external 1T USB HDD
    PSU
    XFX 850W
    Case
    Nanoxia Deep Silence 1
    Cooling
    Noctua NH-D14
    Keyboard
    Microsoft
    Mouse
    Microsoft
    Internet Speed
    50Mbps
    Browser
    Chrome
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