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Editors' Review · November 16, 2025

Free, one-click optimization tool for a clean PC

Clean Master is a comprehensive utility designed to sweep away digital clutter, boost performance, and enhance privacy on your Windows computer. Developed by Cheetah Mobile, this free-to-download software promises to restore your system's speed by tackling common issues like junk files, slow boot times, and sensitive browsing data. 

This application competes in a crowded market alongside popular alternatives such as CCleaner, IObit Advanced SystemCare, and Wise Disk Cleaner. Unlike some of its competitors, though, Clean Master bundles in features like Driver Booster and Privacy Clean to position itself as a more complete optimization suite.

One of the core strengths of Clean Master is the Junk Clean feature, which boasts the ability to scan and identify over 1,000 different programs for residual files. This deep scan goes beyond standard temporary files, targeting application caches and leftover installation data. For users whose PCs are lagging, the PC Boost function helps by intelligently identifying and stopping unnecessary startup programs for snappier overall performance.

Powerful system maintenance

Another notable component is the Privacy Clean module. This tool offers vital protection by eliminating six types of privacy risks, locking out potential intruders, and clearing risky browsing history and records using an anti-tracking feature. Plus, the inclusion of Driver Booster is a major value-add, capable of scanning and fixing issues for over five million devices and drivers, ensuring hardware operates at peak efficiency.

The overall user experience is streamlined and simple, reinforcing the one-click philosophy that guides the tool’s design and makes it accessible to beginners. While the application excels at providing immediate performance gains and comprehensive features, its main disadvantage is that the aggressive marketing tactics and persistent notifications to upgrade to the premium version can become bothersome and disrupt the otherwise clean user interface.

A robust, all-in-one solution

Taken together, Clean Master provides a user-friendly and feature-rich utility that combines deep junk cleaning, system boosting, and crucial privacy protection into one cohesive package. It is an excellent choice for users looking for a straightforward way to keep their PC running smoothly without needing specialized technical knowledge. The one-click solutions and broad feature set, including the Driver Booster, make it a powerful contender in the system utility space.

  • Pros

    • Powerful one-click junk cleaning
    • Significant PC boost and startup speed-up
    • Comprehensive driver management utility
    • Effective anti-tracking privacy protection
  • Cons

    • Frequent upgrade notifications
Enlarged image for Clean Master
Clean Master 0/5

Technical

Title
Clean Master 9.3 for Windows
Requirements
  • Windows 10
  • Windows XP
  • Windows 7
  • Windows 8
Language
English
Available languages
  • English
  • Spanish
  • French
  • Japanese
  • Korean
  • Portuguese
  • Russian
  • Chinese
License
Free
Latest update
Author
Cheetah Mobile

Program available in other languages



Changelog

We don’t have any change log information yet for version 9.3 of Clean Master. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.

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