1. If some installed drivers cannot be opened after the computer is turned on, it is even more important to consider disabling digital signatures!

2. When the computer is turned off and restarted, use F8 key to go to the startup interface of the nearest system, and you can start pressing F8 key without entering the login interface!

3. After entering this interface, find the disabled digital signature and disable it! After completion, you need to reinstall the driver before you can install it smoothly! But the digital signature will still open automatically when the computer restarts, so this method can only be used once!