Use Rufus to Create a Bootable USB or External Drive with the ISO Image
Rufus download link: https://rufus.ie/downloads/. It is recommended to download the latest version.
Install Options: Set the volume label to "Rescuezilla".
Booting from USB
Enter BIOS (hold the Delete or F2 key upon powering on), select USB boot, choose "backup all," and press Enter to proceed.
Note: During the backup process, files in the IMG_files directory will be deleted. Ensure there are no important files in this folder.
Choose the Boot Method
Select USB device boot and press Enter.
Completion Message
When the process completes, you will see "process completes, exit88." This indicates that the backup is finished. Shut down the device and remove the USB.
Note: After backup, system files will be stored in the IMG_files folder on the USB drive.