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Identify computers with EFI/UEFI or BIOS firmware interface

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Article ID: 158442

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Updated On:

Products

PGP Command Line PGP SDK

Issue/Introduction

How to know if the computer is using EFI/UEFI or BIOS firmware interface

Resolution

To determine whether your computer system is using BIOS or EFI/UEFI please follow the steps below:

1. Login to Windows.

2. Go to Start ► Computer

3. Navigate to C:\Windows\Panther\setupact.log


 
4. Open setupact.log

5. search for the following string:


'Callback_BootEnvironmentDetect: Detected boot environment:'


It should tell us the boot environment: BIOS or UEFI in the following format:


Code:Callback_BootEnvironmentDetect: Detected boot environment: BIOS

OR


Code:Callback_BootEnvironmentDetect: Detected boot environment: UEFI


Attachments

How to know computer GPT partition info.docx get_app
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