>>230537>just a complete retard who knows nothing about computers.You act like wiping BIOS is impossible. You realize that trojans / malware can be written on it, so your safest bet is to remove it before you sell it to someone, right? There are tools that both wipe the hard drive and simultaneously uninstall BIOS. It takes virtually no time at all.
BIOS software is stored on a non-volatile ROM chip on the motherboard or on a flash memory chip. It doesn't need to be removed in order to rewrite it. The ROM is read only, but the BIOS program itself is written in a component that's rewritable.