nVFlash is a tool developed by NVIDIA that allows users to update or modify the firmware (BIOS) of the company's graphics cards. The main function of nVFlash is to flash the graphics card's BIOS, that is, to update the software that controls the hardware of the graphics card to a newer version or even to custom versions created by overclockers and hardware enthusiasts.
The tool can be used for:
nVFlash works on Windows and DOS operating systems (via a bootable USB drive, for example).
It is important to be cautious when using nVFlash, as an incorrect or poorly executed BIOS flash can permanently damage the graphics card.