Patent ID: RE43716

Claim:
A method of fast switching control for different operation operating systems pre-installed in a computer with a hard disk storage , a system memory, a basic input output system and an event signal generation unit, the hard disk storage at least stored with a first operation operating system, a second operation operating system and a second operation operating system kernel program, and wherein the event signal generation unit is a user operated element for generating event signals for switching between the first and second operation operating systems, the method comprising the following steps: (a) completing a basic system booting process of the computer; (b) loading and executing the first operation operating system in from the hard disk storage ; (c) establishing a second operating system kernel diagram program memory region in the system memory; (d) loading the second operation operating system kernel program from the hard disk storage into the second operating system kernel diagram program memory region without starting execution of the second operation operating system and without stopping execution of the first operating system; (e) detecting whether the event signal generation unit generates a preset first event signal by operation of the user; (f) executing the second operation operating system kernel program preloaded in the second operation operating system kernel program memory region when the first event signal is detected; and (g) switching the computer from executing the first operation operating system to executing the second operation operating system.