KCleaner 4.0.2 Update

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 4.0.1 (2026/10/01)
- Reduced the risk of memory related errors and improved reliability by porting to Rust
- Added file cleanup with options to choose what to remove
- Improved startup program and service lists for easier management
- Fixed unexpected program exits immediately after launch on affected systems
- Improved loading speed for startup/unwanted program lists
- Reduced screen freezes when refreshing lists
Version 3.8.8 (2026/07/15)
- Improved memory optimization speed and reliability
- Enhanced desktop display stability across various PC environments
- Improved speed by streamlining the cleanup process
- Improved browser-focused memory management efficiency
- Added support for Spanish language.
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

KCleaner is freeware.
Use it freely in any setting, including 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 KCleaner remove security software?
Yes, it can easily remove security programs forcibly installed by banking websites.
Will KCleaner terminate important drivers or antivirus software?
No, it does not terminate essential drivers (such as graphics and sound drivers) or trusted antivirus software.
Does using KCleaner improve computer performance?
Yes, terminating unnecessary programs and toolbars can improve PC performance and web browser speed.
Does the program need to be installed?
No, KCleaner can be used right away as a standalone file without installation.