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Under Preferences> Preferences, uncheck Inform me about CCleaner updates.UPDATE : The latest version of CCleaner v 5.47 Portable fixes these pop-ups. However, you can take a look at these settings:
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CCleaner has a reputation as one of the best utilities for removing unwanted Windows files.It will help you free up space by automatically deleting junk files created by Windows programs and other third-party software. It also cleans up traces of your online activities such as the Internet. At the same time, however, the system is faced with one problem – it often displays a warning about system and active monitoring pop-up windows .
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