You can use the Media Creation Tool to do a fresh install on a device already running Windows 10. Whatever the reason, Microsoft offers several ways to perform a clean install of Windows 10, including using a USB flash drive to set up the installation on an SSD (Solid-State Drive).
Or you can use this option to delete all preloaded bloatware from the manufacturer image on a new computer. If you have had the same installation for a long time, this process can also help fix performance issues, problems shutting down and starting up, memory, and apps. Also, a clean installation is the process of choice to upgrade from an older version like Windows 7 or 8.1. The reason is that this method allows you to erase the hard drive and start with a fresh copy of Windows 10 without custom settings, drivers, apps, or files that may interfere with the upgrade process.