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How to check if my computer boots in UEFI or Legacy BIOS mode
How to check if my computer boots in UEFI or Legacy BIOS mode
12-02-2013 - 09:17 PM


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  • Joined: Sep 2013
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You might be wondering if your Windows is booted in UEFI or the Legacy BIOS mode. Follow one of these below methods in this tutorial, you will find it's easy to check.
METHOD 1: Using Disk Management utility
Step 1:
Windows logo key‌ + X to open the Quick Link menu > select Disk Management

Step 2:
If your computer has an EFI System Partition like below image shows, then it’s using UEFI mode. If not, it boots in Legacy BIOS mode.


METHOD 2: Using System Information utility (in Windows 8 and 8.1 only)
Step 1:
Windows logo key‌ + R to open the Run dialog box > type in msinfo32 > press Enter.
Step 2:
In the right pane of System Summary, check if the BIOS Mode is UEFI or Legacy.


METHOD 3: Using setupact.log file in Windows 7, 8, and 8.1
Step 1:
Navigate to the folder: C:\Windows\Panther

Step 2:
Copy the setupact.log file to your Desktop.

Step 3:
Open it using Notepad
Step 4:
In Notepad window, press Ctrl + F and type in below words and click on Find Next button.
Detected boot environment

Step 5:
Check if the Detected boot environment is EFI (UEFI) or BIOS (Legacy BIOS)


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(This post was last modified: 12-02-2013 09:24 PM by blackguy.)
RE: How to check if my computer boots in UEFI or Legacy BIOS mode
05-23-2014 - 06:51 PM
Junior Member


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  • Joined: May 2014
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Thanks for the tutoring, I've got a kind of a relief when I found your post. I'm not a Pro in this sphere and was already about to address to a project and portfolio management software team for help. Method 1 is really easy! Thanks again.


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