Just upgraded your Windows operating system? Still using an earlier version of Windows on your computer while the newest one you have takes up space. It will come in handy if you ever have to roll back to the older version. Otherwise, you should feel free to remove it to clean up storage.
Microsoft has a very basic document on how to uninstall the earlier version of Windows. This official support article guides you through every step to remove your earlier version of Windows from their site. You can find it here.
Be sure not to need roll-back of the earlier version anytime soon, since this is an irreversible action. You can remove those files. This action will free massive disk space. This is particularly beneficial if you are running out of space on your device (phone, tablet, etc.).
Microsoft recommends adhering to the steps closely mentioned in their documentation and validating your system settings. You used to lose space, no more!
