How To Confirm Secure Boot Enabled or Disabled in Windows 8

The Tutorial will show you how to confirm if Secure Boot is enabled or disabled in your UEFI settings from inside Windows 8.
You must be signed in as an administrator to be able to do the steps in this tutorial.

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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 softwares 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 lever of certificate and policy management on their platform.
• Microsoft does not mandate or control the settings on PC firmware that controls or enable secured boot from any operating system other than Windows.

EXAMPLE:Secure Boot in your UEFI Firmware Settings At Boot

 Here's How

• Open an Elevated PowerShell window from inside Windows 8.
• If prompted by UAC, then click/tap on Yes.
• In the elevated PowerShell window, copy and paste the command below, and press Enter.

                   Confirm-SecureBootUEFI

• 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 BIOS (non-UEFI) PC