SFC Scannow command is a built-in utility that lets you scan for corrupted files on your Windows system and automatically repair them.
SFC Scannow This command scans all the Windows system files, including DLL files, which are the most integral files of Windows. It works on replacing incorrect, corrupted, changed, or damaged system files with the cached version of the files.
windirstat WinDirStat is stands for Windows Directory Statistics is a program that you just click on your drive it scans it and it gives you statistics on all the files in it. WizTree is a very high speed disk space analyzer utility for Windows. It scans your hard drive and shows you which files and folders are using the most disk space. Your entire hard drive's file system is displayed visually, making it very easy to locate large files and folders.
wiztree Use the information WizTree provides to quickly locate and remove "space hogs" from your hard drive. With TreeSize, you can analyze your most important storage systems and directly manage and clean up your files. You can evaluate space usage with statistics and charts, create reports or search for old or duplicate files based on specific criteria – manually, or automatically according to a schedule.
treesize TreeSize can move, archive, delete, but also bulk rename files across systems and much more.