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| Software | Key Features | Safety Rating | |----------|--------------|---------------| | | Open-source, deep clean, erases traces | Very High | | CCleaner Free | Junk cleaning, startup management (avoid registry tool) | High (use portable version) | | Windows 10/11 Built-in Tools | Storage Sense, Disk Cleanup, PC Health Check | Highest (Microsoft native) | : Use the PC HelpSoft Purchase Finder to