CCleaner is the number-one tool for cleaning your PC. It protects your privacy and makes your computer faster and more secure!
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.
Advertisers 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.
Over 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.
Many 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.
ver: 5.34 / Sep 15.2017
ver: 5.26 / Jan 20.2017
ver: 5.25.5902 / Dec 20.2016