Etcher: A few years ago, the creation of one bootable USB it was not so easy. Years ago, CDs / DVDs were the main method of distributing operating systems.
In the case of buying a new computer you would always have an 'installation disk', or if there was none you could create one from within the operating system.
Since then, however, things have changed and you can download any operating software online and easily create a bootable USB for any system you are interested in. Provided you have the right application to do it.
Let's see how it works very easily from any operating system
To create a bootable USB you need a disk image or ISO. ISO is basically a file that contains data that can be written to an optical disc such as a CD or DVD. It's basically an installation tray.
For Windows 10, you can download the ISO image via Microsoft's installation media creation tool. For all of them Linux distributions, you can download the ISO you are interested in from the distribution's official page. You'll only run into problems if you're trying to find some ISOs for working macOS, because they're not readily available. For specific ISOs you may need to search for torrents.
Let's create the USB
Some operating systems, such as macOS, come with helpers programs to burn a disc image to a USB, but again no. The auxiliary program of MacOS is a bit complicated especially if you are a beginner.
Today we will try something simpler.
The Ethcher tool is available for Windows, Linux and macOS. All you need is the ISO file and a USB. The app will take care of all the rest in three simple steps.
After the (easy) creation of bootable USB, you can use it to start your computer from USB and not from your operating system. In some cases, you may need to change the boot order from your computer's BIOS so that it first reads USB instead of your hard drive.
Download the application for your operating system.
Good luck…