nvflash is a tool used for flashing and modifying the BIOS of NVIDIA graphics cards. The version you mentioned, nvflash 5.163 for DOS , suggests it's compatible with DOS (Disk Operating System), an older operating system.
: Copy the BIOS file you intend to flash (e.g., newbios.rom ) and any backups you might need. nvflash 5.163 for dos
: Use a tool like Rufus to create a bootable USB drive formatted as FAT32 with FreeDOS or MS-DOS . nvflash is a tool used for flashing and
Move nvflash.exe , CWSDPMI.exe , and your .rom file onto the root of the USB drive. 3. Booting into DOS System freezing during DOS boot Boot Media :