Open CCleaner and click on in the bottom-left corner. Select My Subscription or Subscriptions . Click Enter license key or find the Activation Code box. Paste your key and click Activate . 3. Using Professional Features
: Includes the core cleaning engine to remove junk files and tracking data. Open CCleaner and click on in the bottom-left corner
: Automatically analyzes and tunes up your PC performance. Paste your key and click Activate
The safest way to use CCleaner is through the official CCleaner website . : Automatically analyzes and tunes up your PC performance
: A popular open-source and free alternative recommended by some power users for its privacy focus.
CCleaner Professional offers more advanced tools than the Free version, such as:
Using pirated software like a "crack," "keygen," or "torrent" for carries significant security risks, including malware infections and data theft. Instead, you can use the official versions safely and legally. Official CCleaner Setup Guide