CCleaner remains the top tool for cleaning and optimizing Windows PCs. It enhances privacy, improves system speed, and strengthens security. With one-click cleaning, beginners can optimize their computers in seconds, while advanced users benefit from a robust set of features. Whether you fall into the casual user category or identify as a tech-savvy professional, speeding up a slow computer without upgrading hardware becomes far easier through CCleaner’s efficient system optimization tools.
CCleaner is a freeware system optimization and privacy tool that helps improve PC performance. It removes unused files from your system, allowing Windows to run faster and freeing up valuable hard disk space. The software also cleans traces of your online activities, including browsing history and temporary Internet files.
CCleaner is also featured in our detailed Windows security and performance tools guide, where we compare top cleanup and protection software.
The tool can run directly from a USB drive, making it portable and easy to use on multiple computers. Users can customize the cleaning process by specifying files, folders, or registry keys to exclude. This flexibility makes CCleaner a convenient system optimization tool for faster Windows performance.
One of its best features is speed. CCleaner runs in seconds, delivering quick results without slowing down your workflow. It contains no spyware or adware, ensuring a clean, safe, and reliable experience every time you use it.
CCleaner cleans the following:
- Internet Explorer. Temporary files, usage history, cookies, super cookies, autocomplete records, and index.dat components.
- Firefox. Temporary files, history, cookies, super cookies. Also, download the history and form history.
- Google Chrome. Temporary files, history, cookies, super cookies. Also, download the history and form history.
- Opera. Temporary files, history, cookies, super cookies, and download history.
- Apple Safari. Temporary files, history, cookies, super cookies, form history.
- Other Supported Browsers. K-Meleon, Rockmelt, Flock, Google Chrome Canary, Chromium, SeaMonkey, Chrome Plus, SRWare Iron, Pale Moon, Phoenix, Netscape Navigator, Avant, and Maxthon.
- Windows. Recycle Bin, recent documents, temporary files, log files, and clipboard data — along with DNS cache, error reports, memory dumps, and jump lists.
- Registry Cleaner. The software includes advanced features to clean unused and old entries, including file extensions, ActiveX controls, ClassIDs, ProgIDs, shared DLLs, fonts, help files, application paths, icons, and invalid shortcuts.
- Third-party applications. Removes temp files and recent file lists (MRUs) from many apps, including Windows Media Player, eMule, Google Toolbar, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip, and many more!
What’s New in CCleaner version 7.05.1255 (2026-03-02) :
Taking the hassle out of PC maintenance
- Shutdown after Custom Clean – You can now automatically shut down your PC after a Custom Clean finishes. Find this option in Custom Clean advanced settings.
- Easier license activation – We’ve added a Paste button to the license activation screen, so entering your license key is quicker and simpler.
Helping you to keep your PC running fast and smoothly
- Faster scans – We’ve fine-tuned our scanning engine, so Health Check and Custom Clean scans now run noticeably faster.
- Update status confirmation – You’ll now see a clear “You’re up-to-date” message when you check for updates, and your app is already on the latest version.
Simplifying the app
- Better layout on all screen sizes – The app now adapts more smoothly to different window sizes for a cleaner, more consistent look.
- Tidier interface throughout – We’ve polished up a few visual details, including button alignment, menu visibility, scrollbar spacing, and layout consistency across languages.
Fixing bugs
- Firefox history now cleans properly – Your Firefox browsing history is now fully removed during Health Check and Custom Clean scans.
- Smoother experience on all Windows devices – We’ve improved compatibility so that manual updates, scheduled tasks, and Startup Manager work reliably across all supported Windows devices.
- Scheduled cleans now respect your exclusions – Files and folders you’ve added to your exclusion list are now properly preserved during scheduled cleans.
- Software Uninstaller displays results correctly – The Software Uninstaller no longer shows a blank screen after completing a scan; you’ll see your results as expected.
Official Homepage – https://www.ccleaner.com/ccleaner
Supported Operating Systems:
- Windows 11 (64-bit)
- Windows 10 (all editions, including 64-bit)
- Windows 8 (all editions, including 64-bit)
- Windows 7 (all editions, including 64-bit)
- Windows 2003, 2008, and 2012 Server (all editions)
- Apple Mac running 64-bit macOS 10.10 and above.
