I would rate it even lower if possible. I chose the Portable version to avoid installation altogether and took additional steps by blocking the app in my firewall to stop updates. However, the app managed to bypass all my precautions. On its second launch, it updated to Version 7 and installed itself on my system without any consent. This is entirely unacceptable. Forcing an installation without an obvious installer or UAC prompt feels predatory and resembles malware behavior. It's a significant violation of trust. There have been longstanding accusations against the developers regarding malware in their app, and after this incident, I firmly believe that this software is not secure. If it can circumvent firewall settings and install itself without a UAC prompt, what else is it doing behind the scenes? Additionally, it silently added a file named SkipUAC - User to my Windows>System32 without my approval. If you care about your privacy and want to manage what gets installed on your computer, I strongly recommend avoiding this software.
Claim your business profile now and gain access to all features and respond to customer reviews.
We create award-winning software to make your computer faster, more secure and have greater privacy. Whether you're cleaning out files on your system with CCleaner, defragging your hard drive with Defraggler, analyzing your hardware with Speccy, or recovering deleted files with Recuva, we've got you covered.
Our software is used and trusted by millions, in all 195 countries and in millions of businesses. In fact, CCleaner alone has been installed more than 2 Billion times onto nearly 25% of all the PCs in the world.
We've improved and optimized thousands of lines of code. Our developers aim for the fastest, most compact, bug-free products you can run on your PC.See more