CCleaner Professional 2026 Key (3 Years / 1 Device)

Award-winning PC Optimization Trusted by millions and critically acclaimed, there’s a reason why CCleaner is the world’s favorite PC optimization tool! Easy to use, one click cleaning so beginners can optimize their computers in seconds. Plus, it's packed with advanced features for power users. SpeedometerFaster ComputerIs your computer running slow? As it gets older it collects unused files and settings which take up hard drive space making it slower and slower. CCleaner cleans up these files and makes it faster instantly. ShieldSafer BrowsingAdvertisers and websites track your behavior online with cookies that stay on your computer. CCleaner erases your browser search history and cookies so any internet browsing you do stays confidential and your identity remains anonymous. Error graphFewer Errors & CrashesOver time your registry can become cluttered with errors and broken settings which lead to crashes. CCleaner’s patented registry cleaner clears out this clutter to make your PC more stable. DialQuicker StartupMany programs run silently in the background when you start up your computer. CCleaner helps you get to work, or play faster by letting you disable unneeded programs. Features Driver UpdaterBoost the performance of PC hardware and devices Health CheckAnalyzes, tunes and fixes your PC so it runs just right again Faster ComputerControl which apps use your computer's resources Privacy ProtectionRemoves tracking files and browsing data Software UpdaterQuickly updates apps to reduce security vulnerabilities Cleans EverywhereEven places other cleaners can't reach Guards Against Junk FilesMonitors junk in real-time Automatically Clears HistoryCleans your browser when you close it Always Up-to-dateCCleaner keeps up with your browsers and operating system

Go to ccleaner.com via your web browser. Download the free version of CCleaner. Once installed, open the app, go to Options - About. Click on Upgrade to Pro. When prompted, enter the provided activation code and click Register. When prompted, please leave the Name field blank.