If you are not satisfied with the Windows defrag, try UltraDefrag instead.

Do a real clean-up on your operating system.
Portable version of this famous optimizer for Windows.
Software with 12 tools divided into cleaning, optimization and diagnostic.
Open-source tool for debloating, privacy, performance, and app installation on Windows.
Optimization suite that allows you to improve performance, clean unnecessary files, protect privacy, and customize system settings.