Level 3
The most simplest form is using Etcher.
You should have a Windows 10 ISO image ready with you. It should be accessible and should Not be corrupt or should not have any other problems.
Level 3
Before you open it, get your pen drive and insert it into the computer or your laptop. Once you have downloaded it, go to the downloaded location and open it
Click on Flash and wait for 2-5 minutes for the process to complete. It may take more time based on your USB stick and System. That's it.