Set temporary startup items

Set temporary startup items:

1. Press the corresponding key (such as F2, F10, F12, etc.) when the computer is turned on to enter the BIOS setting interface.

2. In the BIOS setting interface, find the "Boot" tab, select the device to start and put it in the first place. Usually the U disk or CD will be ranked before the hard disk.

3. Save the settings and exit the BIOS interface.