CCleaner is no longer a "set it and forget it" tool. Do not enable "Automatic Cleaning." Do not run the Registry Cleaner every day (honestly, just ignore the Registry tab unless you know what you are doing).
Today, the is verified via digital signatures. If you get it from the right source, it is clean. So, Why Bother Downloading It in 2025? Windows has gotten better. "Disk Cleanup" exists. Storage Sense is a thing. So why do I still recommend CCleaner? ccleaner piriform download
Disclaimer: Always back up your data before running any system cleaner. The author is not responsible if you accidentally delete your browser history you meant to keep. CCleaner is no longer a "set it and forget it" tool