After we install the system, sometimes there will be two systems for you to choose one to enter when booting. It should be that the previous system remains in the boot area. Record the solution.
step1. Find system advanced settings
step2. Find startup and fault recovery
step3. Select the system to be started by default, and then remove the "time to display the operating system list". The next time you start it, the interface for you to select the system will not appear.
