Methods and systems for operating system recovery

A system for operating system recovery, applied to a computer system, comprising:

• a storage medium;
• a hard disk, comprising at least one first disk partition and one second disk partition, wherein the first disk partition comprises an operating system and the second disk partition comprises a recovery program and an image file corresponding to source installation programs of the operating system;
• a recovery key, set to the computer system;
• and
• a BIOS, loading the recovery program into the storage medium system according to a flag when the recovery key is triggered, executing the recovery program for creating a recovery system, and executing operating system installation using the image file based on the recovery system for recovering the operating system of the computer system.

A system for operating system recovery, applied to a computer system, comprising:

• a storage medium;
• a hard disk, comprising at least one first disk partition, second disk partition, and third disk partition, wherein the first disk partition comprises a Windows operating system, the second disk partition comprises a Linux operating system, and at least one recovery program and an image file corresponding to source installation programs of the Windows or Linux operating system are stored in the first, second, or third disk partition;
• a recovery key, set to the computer system;
• and
• a BIOS, loading the recovery program into the storage medium system according to a flag when the recovery key is triggered, executing the recovery program for creating a recovery system, and executing operating system installation using the image file based on the recovery system for recovering the Windows or Linux operating system.