CCleaner is a system optimization tool that removes junk files, fixes registry issues, and manages startup items. Cleans cache, temp files, browser history, restore points, duplicates, and more. Includes registry cleaner, uninstaller, and free space eraser. Ideal for users looking to optimize system performance. :contentReference[oaicite:8]{index=8}.
- Auto-key injector that runs on startup
- Portable activator for USB and removable drives
- Free license key activation without online sync