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}.
- Patch to bypass cloud-based license verification
- Product key validator tool for offline verification
- License key updater allowing simple migration between computers
