To make a USB drive bootable, you'll need to follow these steps:
1. Insert your USB drive into your computer.
2. Format the USB drive. This will erase any existing data on the drive, so make sure you've backed up any important files before you begin.
3. Download and install a bootable USB creation like RUFUS, UNetbooting, or etcher.
4. Open the software and select the SEO image file of the operating system you want to install from your computer.
5. Choose your USB drive as the destination to create the bootable USB drive.
7. Once the process is complete, eject the USB drive from your computer.
Your USB drive is now bootable and you can it to install the operating system on another computer. Just make sure that the computer you're using it on is set up to boot from a USB drive