: Identifies and removes old or unused registry entries. While intended to improve stability, some experts warn that modern Windows systems do not significantly benefit from this and it carries a risk of system corruption.
CCleaner is a long-standing system optimization tool designed to remove temporary files, clean the Windows registry, and protect user privacy by clearing browser history and cookies. While it remains popular with millions of weekly installs as of 2026, its necessity is frequently debated because modern operating systems like Windows 10 and 11 include built-in tools that perform many of its core functions. Key Features and Benefits CC Cleaner
CCleaner consolidates several maintenance tasks into a "one-click" interface, which many users find more convenient than navigating various system settings. : Identifies and removes old or unused registry entries