This remains a controversial feature. While it can remove leftover entries, many tech experts suggest using it with caution, as improper registry changes can occasionally cause system instability. Expert Perspectives

While CCleaner is generally considered safe and secure today, it carries a mixed history.

Scans for and updates outdated hardware drivers to improve stability.

“"I've been using it since it came out... default setting on cleaning unused files you're going to be plenty safe." — Community user on Reddit ” Reddit · r/computer · 1 year ago

Patented technology that puts inactive apps to sleep to free up system resources.