The world's most trusted PC optimization tool
Download NowFollow this simple guide to download and install CCleaner on your Windows PC or Mac. Clean your system, boost performance, and protect your privacy with the #1 optimization tool.
Official DownloadGo to the official CCleaner website at www.ccleaner.com. Click on the "Download" button on the homepage.
Select between CCleaner Free or CCleaner Professional. The free version offers basic cleaning features, while the paid version includes real-time monitoring and automatic updates.
Click the download button for your operating system (Windows or Mac). The installer file will begin downloading (typically about 20MB in size).
Locate the downloaded file (usually in your Downloads folder) and double-click to run it. Follow the on-screen instructions to complete the installation.
After installation, launch CCleaner from your desktop shortcut or Start menu. You can now start cleaning and optimizing your system.
Remove temporary files, cache, and other unnecessary data that slows down your computer.
Speed up your PC by cleaning registry errors and optimizing system settings.
Securely delete browsing history, cookies, and other traces of your online activity.