Step 3: Select the option that boots the PC from the USB flash drive. Note: This boot process can occur quickly if you missed the chance to enter BIOS, restart the computer again. Step 2: Turn on the PC and press F12 to open the boot-device selection menu. Step 1: Connect your external storage device to your computer.
This is a faster way to set your Windows PC boot from SSD or USB device but may not exist on every machine.
If your computer has a Boot Menu option, you can follow these steps below. How to set Dell to boot from an external hard drive one time Booting from a secondary boot disk is useful for running diagnostics and disk utilities on a primary disk. As long as there is a Windows installation or Windows OS file in that disk. This includes external hard drives, CD, DVD, and USB flash drives. By default, the computer boots the system from the primary internal storage device, and most computers allow you to boot from other disks.
