: The update will force a restart once complete.

BIOS (Basic Input/Output System) is the low-level software stored on a chip on the motherboard. When you press the power button, the BIOS is the first code to run. It initializes the hardware (CPU, RAM, hard drive, keyboard) and then hands control over to the operating system (Windows/Linux).

The Toshiba Satellite C660 BIOS update represents more than a routine maintenance task; it is a bridge between eras of computing. It transforms a machine designed for Windows 7 into a device capable of handling Windows 10, secures it against modern vulnerabilities, and corrects the thermal eccentricities of aging hardware. While the process carries risk, the successful application of a BIOS update is often the decisive factor in whether a C660 is retired to a landfill or continues to serve as a functional workhorse.