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Secure Boot - Confirm Enabled or Disabled in Windows 8

  1. #1
    Secure Boot - Confirm Enabled or Disabled in Windows 8

    Secure Boot - Confirm Enabled or Disabled in Windows 8
    How to Check if Secure Boot is Enabled or Disabled in Windows 8 and 8.1
    Published by Brink is online now
    12 Feb 2013
    Default Secure Boot - Confirm Enabled or Disabled in Windows 8

    How to Check if Secure Boot is Enabled or Disabled in Windows 8 and 8.1

    information   Information
    This tutorial will show you how to confirm if Secure Boot is enabled or disabled in your UEFI settings from inside Windows 8 and 8.1.

    You must be signed in as an administrator to be able to do the steps in this tutorial.

    Note   Note
    UEFI (replaces BIOS) has a firmware validation process, called secure boot, which is defined in Chapter 27 of the UEFI 2.3.1 specification. Secure boot defines how platform firmware manages security certificates, validation of firmware, and a definition of the interface (protocol) between firmware and the operating system. Secure boot prevents “unauthorized” operating systems and software from loading during the startup process.

    Quick summary

    • UEFI allows firmware to implement a security policy
    • Secure boot is a UEFI protocol not a Windows 8 feature
    • UEFI secure boot is part of Windows 8 secured boot architecture
    • Windows 8 utilizes secure boot to ensure that the pre-OS environment is secure
    • Secure boot doesn’t “lock out” operating system loaders, but is a policy that allows firmware to validate authenticity of components
    • OEMs have the ability to customize their firmware to meet the needs of their customers by customizing the level of certificate and policy management on their platform
    • Microsoft does not mandate or control the settings on PC firmware that control or enable secured boot from any operating system other than Windows


    For more information about secure boot, see:




    EXAMPLE: Secure Boot in your UEFI firmware settings at boot

    Click image for larger version






    OPTION ONE
    To Check if Secure Boot is Enabled or Disabled in System Information

    1. Press the + R keys to open the Run dialog, type msinfo32, and press Enter.

    2. In the right pane of System Summary in System Information, see what the Secure Boot State value is. (see screenshot below)

    Value Description
    On PC supports Secure Boot and Secure Boot is enabled
    Off PC supports Secure Boot and Secure Boot is disabled
    Unsupported PC does not support Secure Boot or is a Legacy (BIOS) installed Windows


    Click image for larger version





    OPTION TWO
    To Check if Secure Boot is Enabled or Disabled in PowerShell

    1. Open an elevated PowerShell window from inside Windows 8 or 8.1.

    2. If prompted by UAC, then click/tap on Yes.

    3. In the elevated PowerShell window, copy and paste the command below, and press Enter.

    Confirm-SecureBootUEFI

    4. Based on what the cmdlet returns, this will let you know if Secure Boot is enabled or disabled in your UEFI settings.

    Cmdlet Return Description
    True PC supports Secure Boot and Secure Boot is enabled
    False PC supports Secure Boot and Secure Boot is disabled
    Cmdlet not supported on this platform PC does not support Secure Boot or is a Legacy (BIOS) installed Windows


    Click image for larger version

    Click image for larger version

    Click image for larger version



    That's it,
    Shawn


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  2. #1
    theog's Avatar

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    Nice one, Shawn.


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  3. #2
    Brink's Avatar

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    Thank you Ray.
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  4. #3



    Member

    Join Date : Nov 2012
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    Windows 8 Pro x64


    If Secure Boot is on then Windows 8 is confirmed to be UEFI booted, right?

    I just updated the BIOS and the startup changed from the usual ASUS logo to the Windows 8 logo, but in msinfo32 the BIOS mode is UEFI and Secure Boot is on.
    And to add, my boot SSD is GPT.
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  5. #4
    Brink's Avatar

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    Hello iron,

    That's correct. When it says that "BIOS mode" is UEFI, then your Windows 8 was installed with UEFI. Secure Boot is a feature of UEFI.

    Hope this helps.
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  6. #5
    MilesAhead's Avatar

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    So is the $64,000 question.. if Windows 8 has secure boot on, then gets hosed... are all your bootable rescue CDs and USB keys useless? Or is there a basic strategy that still provides rootkit resistance while allowing system rescue?
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  7. #6
    Brink's Avatar

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    Hey Miles,

    If needed, you could boot into your UEFI settings, and just disable Secure Boot as needed, then enable again when finished.

    Secure Boot - Enable or Disable in UEFI
    Last edited by Brink; 02 Nov 2013 at 03:16 PM.
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  8. #7
    MilesAhead's Avatar

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    Ah, sounds good. Thanks.
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  9. #8
    theog's Avatar

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    All bootable software using WinRE4 x64 will boot with Secure Boot ENABLED.
    Last edited by theog; 03 Nov 2013 at 10:43 AM.
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  10. #9
    MilesAhead's Avatar

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    @theog Thanks, that's good to know.
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