Why do you have to unplug the U disk before you reboot the system with the U disk?
Before you install the system, if you set up the U disk startup, after the installation of the system restart, you will default to select the U disk to start.If you do not unplug the U disk, it will be like the PE system, then you can start from the hard disk, and you can continue to install the system.
Not reallyMost of you don't USB boot disk operation, he will automatically enter the hard disk boot
