Screenshots
About CCleaner Portable
CCleaner Portable is the ultimate system cleaning tool that runs directly from your USB drive, letting you clean any Windows PC without installation. Whether you're maintaining your own computer or fixing a friend's machine, this portable version delivers the same powerful cleaning capabilities as the desktop application—just with complete portability.
Remove junk files that clutter your system and slow performance. The app scans and eliminates unnecessary temporary files, cache data, and residual program fragments that accumulate over time. You'll reclaim valuable disk space and restore your computer to peak efficiency with just a few clicks.
Clean your digital footprint by deleting cookies, browsing history, and cached data that websites and applications store on your computer. CCleaner Portable also finds and removes error entries lurking in the Windows Registry, fixing broken shortcuts and orphaned references that can cause system instability.
The beauty of this portable version lies in its simplicity: plug in your USB drive, run the executable, and start cleaning any Windows computer immediately. No installation required, no admin rights needed on the target machine—just pure cleaning power in your pocket. This makes it perfect for IT support, computer maintenance professionals, or anyone who regularly troubleshoots systems across multiple machines.
CCleaner Portable delivers trusted, reliable system optimization wherever you go. Take control of your PC's health and performance with the portable cleaning solution trusted by millions of users worldwide.
Pros & Cons
Pros
- Runs from USB without installation or admin rights required
- Removes temporary files, cache, and registry errors in one pass
- Portable format makes it convenient for maintaining multiple PCs
- Cleans browser history, cookies, and cached website data
Cons
- No safeguard preview before permanent deletion of files
- Aggressive registry cleaning can destabilize systems if misconfigured
- Limited undo capability once cleanup operations complete
- USB portability may encourage casual or careless system cleaning
Related Apps
HWiNFO
Hardware monitoring for Windows—track CPU temp, GPU load, fan speed, voltage in real time.
TransMac
Read Mac drives and DMG files on Windows. Access APFS/HFS+ storage and create disk images.
Advanced SystemCare Free
System optimization tool: clean, repair, and secure your PC. Remove malware, fix errors, and boost performance.
Display Driver Uninstaller (DDU)
Driver uninstaller for GPU and audio — removes residual files for clean Windows updates
Glary Utilities
PC maintenance and optimization suite — clean, repair, and speed up your Windows computer in one action.
Universal ADB Drivers
ADB drivers for Android: Connect any smartphone to Windows PC without manufacturer software.
Latest Articles

Best AI admin task automation apps for desktop in 2026 (we tested 7)
Jul 11, 2026
Best AI coding tutor apps for desktop in 2026 (we tested 7)
Jul 11, 2026
Best apps for AI red teaming on desktop in 2026 (free and paid)
Jul 11, 2026
Best apps for the *arr media stack on desktop in 2026 (we tested 7)
Jul 11, 2026
Best apps for benchmarking local LLMs on desktop in 2026 (free and paid)
Jul 11, 2026