Core features: Disk scanning; temporary file detection; large file preview; risk grading; user-confirmed cleanup; cleanup result statistics. Input: C drive scan scope and cleanup options Output: reclaimable space analysis and cleanup results Supported platforms: Windows 10/11 x64; runs locally and offline. Business model: Free tier: 1 scan per day. Perpetual license removes usage limits. Processing: Files are processed locally and are not uploaded to third-party services.