You may encounter an error that Windows disk Cleanup is in progress. It turns out that there are different ways to solve this problem, so we will briefly discuss them. Advanced maintenance-free system.CCleaner.Ashampoo WinOptimizer.PrivaZer.smart hard drive cleaner.A little bleach.Glary Utilities.Privacy eraser. Type “Disk Cleanup” in the box on the taskbar search and select “Disk Cleanup”…