Windows installation media is useful for re-installing a fresh copy of Windows 10, as well as recovering from various boot issues or other problems you might encounter. To create the media you’ll need the media creation tool.
If it doesn’t show up, go to your downloads folder and double click MediaCreationTool.exe.
Select your language, edition of Windows 10 (home or pro) and your computer’s architecture (either 32bit for older machines and 64bit for machines purchased in the last 5-10 years). Most of the time, the media creation tool will automatically select these settings based on your current version of windows and hardware. Click next.
This process can take a while depending on the speed of your PC. Once it has finished, store your USB stick in a safe place as you probably won’t need it unless you have problems or want to install a fresh copy of Windows 10. If you run into problems with your PC, you can always start it up using the USB stick you just created.