
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

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.
