Need to flash an old motherboard? Copy freedos.img to your drive. Add this to menu.lst :
A faint blue glow came from Eli’s workbench as rain tapped the window. He was a tinkerer of small miracles — repurposing old laptops, coaxing stubborn computers back to life — and tonight his challenge sat between a soldering iron and a mug of cooling coffee: a battered netbook with a corrupted bootloader. grub4dos installer 1.1
Here is the step-by-step process to ensure you don't run into the common "Boot error" or "File not found" issues. Need to flash an old motherboard
title Windows XP (Partition 1) rootnoverify (hd0,0) chainloader /ntldr 0) chainloader /ntldr