Windows - Mounting and Unmounting a Filesystem
Now that you’ve formulated your new file system, there’s one more step left. You have to mount your file system to a drive Mounting: Making a file or hard disk accessible to the computer, like a filesystem or a hard disk
In this case, we want to make our USB drive accessible, so we mount the file system to drive. Windows does this for us automatically. You might have noticed this. If you plug in a USB drive, it’ll show up under your list of drives and you can start using it right away.
When you’re done using the drivers, we’ll just have to safely eject or essentially unmount the drive by right-clicking and selecting Eject.