The safest way to use CCleaner is through the official CCleaner website .
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
If you have purchased a legitimate license, follow these steps to activate the Professional features: The safest way to use CCleaner is through
Using "cracked" versions found on BitTorrent or third-party sites often bypasses your antivirus and can install hidden "backdoors" or ransomware on your system. CCleaner v6.08.10255
: Double-click the downloaded .exe file and follow the prompts to click Install . Click Enter license key or find the Activation Code box
CCleaner Professional offers more advanced tools than the Free version, such as:
: Scans for and updates old software drivers to improve system stability. Using Professional Features If you have purchased a
: You can verify your version by looking at the top of the application window. The most recent major releases include version 6.x . 2. Activating Professional (If you have a key)