You can create a DOS-bootable USB flash drive by downloading and saving a FreeDOS operating system image. The bootable USB flash drive can then be used for testing and troubleshooting any component on your PC.
This procedure requires a USB flash drive that has a capacity of at least 8 GB. The selected drive must be formatted and all existing data must be erased.
To use the DOS operating system, change the boot order in the system BIOS to load the DOS operating system from the USB flash drive. For more information, go to HP PCs - Configuring the boot order in the system BIOS.