A CCleaner key upgrades the free version of CCleaner to CCleaner Professional, unlocking advanced cleaning, real-time monitoring, automatic updates, and other premium features.
Before You Start
- CCleaner installed on your PC (download from ccleaner.com)
- Your CCleaner Professional license key
How to Activate
- Open CCleaner.
- Click “Options” in the left sidebar.
- Select “About”.
- Click “Upgrade to Professional” or “Enter License Key”.
- Paste your license key and click “Activate”.
- CCleaner Professional will be unlocked immediately.
Tips
- One key activates one PC. Multi-device plans require multiple keys or a specific bundle.
- If you reinstall Windows, you can reuse the same key on the same device.
- CCleaner Professional includes priority support and automatic updates.