9 Ways to Clean Up Windows 10

9 Ways to Clean Up Windows 10. Windows 10 is a phenomenal operating system (OS), but like any other OS, the more you install applications, change settings and browse the web, you can clutter it up. In this article, you’re going to learn how to keep Windows clean by covering how to delete backup files in Windows 10, remove file history, unnecessary system restore points, delete the Windows.old folder, and the $Windows.~BT folder and more