KCleaner 3.8.8 Update

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Update

Easily remove unwanted or forcibly installed security programs.
Cleanly terminate malicious programs that disguise themselves with the same names as Windows system processes.
Conveniently manage programs that automatically run from various locations at startup.
Does not close essential drivers such as graphics or sound drivers. (closing them may cause performance issues).
Does not terminate trusted antivirus software.

Version 3.8.7 (2026/04/15)
- Fixed a crash caused by misbehaving security software interfering after clicking the Run button
- Applied code signing certificate and improved signing process
Version 3.8.6 (2026/03/19)
- Improved memory management for better efficiency
- Optimized internal processing for faster system responsiveness
- Reduced unnecessary memory usage for a smoother experience
- Enhanced overall stability and performance
Version 3.8.5 (2026/03/15)
- Added cleanup support for working set, cache, and standby memory
- Added system memory cleanup feature
Version 3.8.2 (2025/10/24)
- Improved stability under antivirus or restricted permission environments

KCleaner is freeware.
You can use it freely anywhere, including at companies, homes, government offices, and schools.
You may distribute it freely anywhere.

Download
(Windows)

Is KCleaner free?
Yes, KCleaner is free to use anywhere, including at companies, homes, schools, and government offices.
Can I remove security programs with KCleaner?
Yes, you can easily remove unwanted security programs installed by banking websites.
Does KCleaner close important drivers or antivirus programs?
No, it does not close essential drivers (graphics, sound, etc.) or trusted antivirus programs.
Does using KCleaner improve computer performance?
Yes, by closing unnecessary programs and toolbars, it can improve your PC’s performance and web browser speed.
Do I need to install the program?
No, KCleaner is a single file that you can use right away without installation.