Create Bootable USB From ISO instead of the hard drive. You only have to do two things: make your USB stick bootable. And then boot the PC from an external medium. We show you how.
Maybe you want to install Windows 10. Or you want to use a partitioning tool that has to run outside of your OS. There are a few reasons why you want to boot from a USB stick. This does not happen automatically. You must ensure that the USB stick has been made bootable. And that your PC can boot from an external medium.
Create Bootable USB From Windows ISO:
A computer can only boot from a medium if the necessary files and software are installed there. A common mistake is that people put an ISO file on a USB stick. Then I hope that the PC recognizes this as a bootable stick to install Ubuntu, Windows, or other OS, for example.
There are various great utilities to make sticks bootable or bootable. These create, among other things, the correct partition table and files so that a PC can use it. One of those tools is Rufus or Microsoft’s own Media Creation Tool that allows you to download, and use a legal Windows copy.
With Rufus, you have to be a bit careful about which settings you choose. But in the standard configuration, you only have to click on the icon of a CD drive. Choose an ISO file and make sure that there is a check next to ‘Create’ Bootable USB From ISO ‘.
Tools like Rufus also warn you before you continue, but keep in mind that the stick will be overwritten. So make sure that files that are on it that you want to keep are stored safely somewhere first. You also need an ISO of what you want to start, for example from Ubuntu or Ultimate Boot CD.
Boot from USB
Nowadays, many PCs are already configured in such a way that they first check. Whether a USB device has been connected before they boot from a hard disk. That has a number of security implications that are not so nice. But for the home user with a desktop PC, this is not even that bad. Not all PCs are configured to boot from a USB drive.
Most PCs indicate during POST which key you should press for the boot menu. In addition to a BIOS option, for example, something like ‘Press F12 for boot options’. In a number of cases, you will have to enter the BIOS itself to adjust the startup sequence. You can see a boot menu as a one-time change before this start-up. A BIOS change is more permanent and you must restore it afterward.
Plan B: Change BIOS
Sometimes the startup options are not displayed and you need to check the site of your PC manufacturer. Or motherboard manufacturer to see if it is Del, F2, F10, F12 or anything else to get into the BIOS. Change the first BIOS option from HDD to USB to ensure that USB is tried first and only the hard drive afterward.
There is still a small number of PCs – mostly very old systems. Where it is not possible to start from USB. In that case, you will have to burn the ISO to a CD / DVD as a bootable disc. For which most burning programs have an option.
Please note that in some cases a USB stick must be connected before this option appears. If you have changed the boot order, choose ‘Save & Exit’ and reboot the system (in most cases with F10) with the new configuration settings. Next, starting from the stick.