how to undo bios update ?,

[ko99]

hi , updated my bios hoping it would help me with lag in games but now my pc fans get so scary loud when just loading up a game like never before even sometimes when I'm not opening anything . I want to undo the update so bad.  my pc is 7 years old so I understand some games are too much for it bur it has never been this loud until I did the update please help asap.

[Sneha_01]

Hi @ko99,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

Undoing a BIOS update, also known as downgrading the BIOS, can be a bit tricky, but it's possible. Here's a step-by-step guide on how to revert to a previous BIOS version:

Step 1: Identify Current and Previous BIOS Versions

Find Current BIOS Version:

• Restart your computer and enter the BIOS setup by pressing a specific key (usually F2, F10, Delete, or Esc) during startup. The key to press is often displayed briefly on the screen during the boot process.
• Once in the BIOS setup, look for the BIOS version information, usually found on the main screen or system information tab.

Download Previous BIOS Version:

• Visit the official support website of your PC or motherboard manufacturer.
• Search for your specific PC or motherboard model.
• Locate the BIOS section and find the previous version you want to revert to. Download the BIOS file and any associated flashing tools.

Step 2: Prepare for BIOS Downgrade

Create a Bootable USB Drive:

• Format a USB drive to FAT32.
• Copy the downloaded BIOS file and the flashing tool to the USB drive.

Backup Current BIOS Settings:

• Before proceeding with the downgrade, it's a good idea to note down your current BIOS settings. Take photos or write down important settings in the BIOS setup.

Step 3: Perform the BIOS Downgrade

Boot into BIOS Setup:

• Insert the USB drive into your PC.
• Restart your computer and enter the BIOS setup again.

Initiate BIOS Flashing:

• Look for a BIOS update or flash utility option in the BIOS setup. This option may be labeled as "EZ Flash", "M-Flash", "Q-Flash", or similar, depending on your motherboard manufacturer.
• Select the option to update the BIOS and choose the BIOS file from the USB drive.
• Follow the on-screen instructions to flash the BIOS with the previous version.

Step 4: Restore BIOS Settings

1. Reconfigure BIOS Settings:
   • After the downgrade is complete, your BIOS settings may be reset to default. Re-enter any custom settings you noted earlier.
2. Save and Exit:
   • Save the changes and exit the BIOS setup.

I hope this helps.

Take care and have a good day.

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Rachel571

HP Support