Model: HP Pavilion 8765C
Category: BIOS Driver
Operating System: Windows XP (Note: might work with other versions of this os.)
I used it to upgrade to Windows XP, but it is a general upgrade.
Once you download this file, running it will extract the files on your hard drive. Make a bootable disk, reboot with that disk, then run the file BIOSupdt.bat from the location you extracted the files to.
IF YOUR FILE SYSTEM IS NTFS, you MUST copy all the files it unzipped to a Floppy drive, and run the update directly from the floppy.
Sounds like a pain, but it's a snap.
Hope this helps!