However, you can significantly speed up the process to only a few seconds using a few command lines. The reason is that during the delete process, Windows 10 needs to run calculations, analyze, and show updates as files and folders are deleted on the screen, something that usually takes time when deleting a large folder with thousands of files and subfolders. On Windows 10, sometimes you need to delete folders that may contain many files, and using File Explorer can take a long time.