To use the paid features of CCleaner Professional, such as the full version of Health Check, you must have it registered with a valid, active license key.

Trusted by millions and critically acclaimed, CCleaner is the world’s favorite PC optimization tool! Designed for both beginners and power users, it offers one-click cleaning to instantly...

If you cannot find your license key or confirmation email, contact the PC cleaner's customer support through their website. Provide them with details such as the email address you used at the time of …

Dec 8, 2025 · Have you lost your CCleaner Pro product key? Then, no need to worry. You can easily find your CCleaner product key on Windows 11 using the 2 super easy methods.

If you require technical support, have a question about a product, lost your license key or need a receipt/invoice for your purchase please select suitable section and provide us detailed info about …

Need to find your product license key? Please enter the email address you used when you bought your software. We'll then email you the license key.

You PC Cleaner Activation code can be found on your purchase confirmation page and in your purchase confirmation email. Copy the confirmation code by highlighting the entire code, right clicking, and …