With the increasing use of personal computers for daily tasks, system performance degradation due to the accumulation of temporary files, cache data, and unused system resources has become a common issue. Although modern operating systems provide basic maintenance mechanisms,they often lack transparency and user control, which may lead to inefficient cleanup or unintentional system modifications. Therefore, there is a growing need for a reliable and safe system maintenance solution that emphasizes user awareness and system integrity.This project presents the implementation of ClearSys, a modular system maintenance utility developed using the Python programming language to safely identify and remove temporary and junk files from a computer system. The proposed system focuses on scanning predefined temporary directories and applying strict rule-based validation to ensure that only non-critical files are selected for removal. By separating the scanning, safety verification, deletion, and reporting processes system minimizes the risk of accidental system damage. Python’s file system handling capabilities are utilized to efficiently manage file operations while maintaining low computational overhead.The simplicity, safety-oriented design, and extensible architecture of the proposed solution make it suitable for system maintenance tasks and academic software engineering applications.