Using unofficial ISOs to modify BIOS tags can permanently brick your motherboard or void your warranty. For modern password resets, Dell generally requires official support verification.
Whether you are trying to clear a forgotten or recover from a failed update, here is everything you need to know about using an ISO-based reset. What is a Dell BIOS Reset ISO? dellbiosresetiso
On Dell desktops made after April 2020, you can perform a "Real Time Clock" reset by holding the power button for 30 seconds while the unit is unplugged. Using unofficial ISOs to modify BIOS tags can