You can hang it on your keychain to look super nerdy
How to Create a Bootable USB Flash Drive for Windows 10 (Tutorial)
The days of CD installers are over. Now you can use more convenient tools, such as a USB, to install or repair an operating system. We show you how to use one to reboot and repair a PC.
By default, Windows attempts to detect errors during startup and will normally boot into safe mode automatically if problems are found. While Windows 10 has robust self-healing tools, it is not bulletproof.
There is a good reason why you would want to have a bootable USB lying around. In the event that your PC crashes and won’t boot on its own, you can use the USB drive as a recovery system.
