Reinstall the system
If your notebook needs to be reinstalled, you can download Chinese DOS from the Internet and install it with an external USB flash drive. However, you should pay attention to find the driver suitable for your computer and install it to avoid unnecessary trouble.
Send to the designated maintenance location.
If you find it troublesome to reinstall the system, you can send it to the designated Lenovo notebook repair point. Or call 4008 108888 for help.