1. Now insert the USB flash drive and turn on the Dell computer. Click F 12 to start the menu when the computer is not completely on the desktop. After starting, you will see the option of "USBStorageDevice", just make a choice and select Enter to confirm entry.
2. After entering the BIOS, you will see the main option. Set the time, and don't move other settings. Then we use the arrow keys to make a choice, and when we see Boot, we choose enter to confirm.
3. When we confirm, the computer will start the bios, and we can see that the computer is automatically reinstalling the system. If you don't need to reinstall, just want to make settings, then directly move the arrow keys to select, enter Settings, and move the order of the setup program. After setting, press f 10 directly to save the setting, and then exit.
4. If you want to set the hard disk mode, you need to enter the BIOS main interface and find "Advanced" to choose. This option represents an advanced setting. After entering, select "SATAUperation" working mode and press Enter to confirm. Locate ATA and select OK. This setting is to make our computer system compatible with more software and programs.