The U disk of Chinese cabbage itself is a PE startup disk, so it can't back up the system. Other tools and software in Chinese cabbage are used for system backup, such as DG, easy-to-count one-click restore and so on.

Start the disk with the U disk of Chinese cabbage, start the computer and enter PE.

Run the system backup software inside, if not, you can add it yourself (check the PE on the computer before starting, then download the backup software from the Internet, and then copy the software to the PE disk. If the software is not a green version, you need to install it in the computer first, and then copy the software directory to the PE disk. )

According to the prompt of the software, start to back up the system.