Dell BIOS update files are often distributed as self-extracting executable (.exe) files that contain the BIOS firmware. You can extract the contents of these files using the Command Prompt (CMD) in Windows. Here's how you can do it:
Note: Before you begin, make sure you have downloaded the Dell BIOS update .exe file from the official Dell support website.
Steps to Extract Dell Laptop BIOS using CMD:
Place the BIOS Update .exe File in a Folder:
Create a new folder on your desktop or any location of your choice. Place the Dell BIOS update .exe file inside this folder.
Open Command Prompt:
Press Win + R, type cmd, and press Enter to open Command Prompt.
Navigate to the Folder Containing the .exe File:
Use the cd command to navigate to the folder where your BIOS update .exe file is located. For example, if your folder is on the desktop, you can navigate to the desktop by typing:
cd Desktop
Run the .exe File with the /writeromfile Parameter:
Run the BIOS update .exe file with the /writeromfile parameter. This parameter instructs the BIOS updater to extract the ROM file without installing it. The command should look like this:
your-bios-update-file.exe /writeromfile
Replace your-bios-update-file.exe with the actual name of your BIOS update file.
For example:
BIOS_Update.exe /writeromfile
Press Enter:
Press Enter to execute the command. The BIOS update utility will run and extract the ROM file containing the BIOS firmware into the same folder where the .exe file is located.
Locate the Extracted BIOS File:
After the process is complete, you should find the extracted BIOS file (with extensions like .hdr, .rom, or .bin) in the same folder where you placed the .exe file.
You have successfully extracted the Dell laptop BIOS using the Command Prompt. Remember, working with BIOS files requires caution. Ensure you have a specific reason for extracting the BIOS, and avoid modifying the BIOS firmware unless you are experienced and understand the risks involved.