i need to force install a lower version of bios, but the hp installer does not let me...

[GKitty]

so i had a gpu problem which i found out what the problem is - a bios update

and i have to install a older version of it into my pc, the problem is i cant figure out how 
how do i force install it? or unlock the installer?

[Echo_Lake]

@GKitty
Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help,  I have a few troubleshooting steps we could try to fix the issue:  

Let's try Bios recovery using windows key:
This tool might or might not work in the event of BIOS corruption depending on many factors, but is worth trying in the event the BIOS is corrupted.

1. Turn off the computer, and then connect the power cord.

2. Press and hold the Windows key and the B key at the same time, and then press and hold the Power button for 2 to 3 seconds.

   

3. Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.

   • If the HP BIOS Update screen does not display, repeat the previous steps but press the Windows key and the V key. If the screen still does not display, your computer might not support the feature or there is a hard drive issue. Continue to the next section to Recover the BIOS using a USB recovery drive.

   • If the Power light turns off, the Power button was held too long. Repeat the previous steps, making sure to hold the Power button for only 2 to 3 seconds.

   • If a BIOS recovery message repeatedly displays, continue to the next section to Recover the BIOS using a USB recovery drive.

   • If a message that the computer improperly shut down or a boot problem is detected displays, follow the on-screen instructions to resolve the error.

   • If Windows starts, update to the latest BIOS version. Go to HP Notebook PCs - Updating the BIOS for more information.

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.