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How to activate a CCleaner key?

Activating a CCleaner key is really easy, simply follow these short steps:  

  1. Go to ccleaner.com via your web browser.
  2. Download the free version of CCleaner.
  3. Once installed, open the app, go to Options - About.
  4. Click on Upgrade to Pro.
  5. When prompted, enter the provided activation code and click Register.
  6. When prompted, please leave the Name field blank

The key is not working

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions:

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