However, if you’ve successfully installed Ubuntu & are feeling adventurous I’d also suggest giving it a try from your new Ubuntu install How to Format USB Drive on Linux
The good news is, you can always re-format again if something goes wrong - just remember that formatting destroys any data on the device so always back up first if there’s anything important on there you want to keep!
As i said, 3 drives would show up whenever i plugged in my USB after flashing it with balenaEtcher. Do i format all of the drives named “Unidad de USB”? They all appear to be in RAW format.
The number of drives shown by your Windows machine depends on the number of partitions that the flashed Linux image has. In order to change it back to a “single” drive, you may follow the instructions for Windows in this blog post: Etcher broke my USB stick … or did it?
There is also a separate set of instructions on the same blog post if you want to reset the USB drive using Linux. As mentioned by my colleague, don’t forget to copy any important data that you may want to keep out of the USB drive before reformatting it.