If not, delete all files about League of Legends on your computer.
Another possibility is your configuration problem.
Unexpected power failure and shutdown will lead to file loss and file damage. If the damage happens to be an important file of the game and the game cannot be started, it can be solved by downloading and installing the game again.
Online games can only be started by networking. Network breakpoints, poor network, network errors and other reasons will cause online games to fail to start. Only when the network is restored smoothly can the game be started, and if it is serious, it can be reported to the network operator for repair.
The game can't start because of the conflict between the system and the game. High-end systems and new systems are prone to conflict with games. You can reinstall the system test and try to use a more mature system.
The game can't be started due to the decline of computer hardware performance. This situation is often that it can be started normally the day before, and it can't be played the next day because of the excessive performance loss of computer hardware. You can delete the software that takes up resources, close the background running program, and "slim down" the computer.
The abnormal game startup caused by the old driver can be solved by updating the driver.
The new lol client is stuck in this interface. You can close the auxiliary tools such as LOL box or restart the system.
The specific solutions are as follows:
If auxiliary tools such as lol box and bigfoot are used, the game may be wrong. You can turn it off directly if you encounter it. It is recommended to use Tencent's own tgp assistant.
If you don't use an assistant, there is something wrong with Tencent's server. You can restart the game or restart the computer.
3. If you still can't solve it, you can contact the official feedback of the game. In addition, the new client and the old client are independent. If there is any problem with the new client, you can continue to play with the old client temporarily.