To check this, you can use a free tool like MobaLiveCD.
USB Not Bootable : First, check if the USB drive is, in fact, bootable. It could mean one of several things: either the USB media is corrupted, it's not bootable or your computer itself doesn't support USB boot. One of the most common errors is that the USB drive is not an option when you go to the BIOS Setup Utility. So you finally created a Windows 10 bootable USB but the computer can't boot from it? What could be the problem and how to fix? In this post, we list all the potential issues and fix to help you out. But in nowadays, USB is a much better chocie as CD/DVD drive is not available on most of laptops and desktops. Generally, you can make a Windows 10 installation media with CD, DVD or USB. Now, Windows 10 is more preferred desktop because of the new features it brings up to. There are a few scenario that we need to boot a Windows installation/rescue disk on a computer in order to fix the issues.
