Operating system switching method

An operating system switching method for use in an electronic device having a first operating system and a second operating system, the method comprising:

• determining whether the first operating system receives an operating system switching command at time t1, wherein the operating system switching command is for controlling the electronic device to switch between the first operating system and the second operating system;
• storing first status data to a volatile memory and a non-volatile memory when the first operating system enters a non-operating state from an operating state based on the operating system switching command, wherein the first status data records an operating status of the first operating systems at time t1;
• writing second status data stored in the non-volatile memory to the volatile memory, wherein the second status data records an operating status of the second operating system at time t2;
• and
• controlling the second operating system to enter the operating state from the non-operating state and recover to the operating status at time t2 based on the second status data stored in the volatile memory,
• wherein time t2 is earlier than time t1, and the operating state is state S0 as defined in the Advanced Configuration and Power Interface (ACPI) standard, and the non-operating state is state S3 as defined in the ACPI standard.