KCleaner is a powerful system cleaning tool that will uncover junk and redundant files. The app can locate all kinds of clutter that is left all over your hard drive by various apps. KCleaner is able to clear up Windows and browser temp files and caches relating to Java, ATI Drivers, Skype, Google Earth, QuickTime, and Adobe Reader etc.
Detects and cleans temporary and useless files.
Automatic mode working in background.
Secured file deletion method.
Multi language support.
KCleaner is also highly configurable. You can choose what types of files you want to seek out and delete. You also have the option to securely wipe files, so they can't be recovered at a later date.
Overall, KCleaner does a fairly good job of recovering hard drive space, whilst not taking risks with your system. It is relatively lightweight and has a small footprint. The interface is easy to use, however, the config options could be presented in a better way.