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. Had a past malware incident, but current versions are considered secure if kept updated.
- Offline license activation using custom .dat files
- Patch installer disabling forced online activation prompts
- Patch disables license expiration and update checks
- License key updater allowing easy license transfers
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