I've been using Clary Utilities for a while in favour of Ccleaner which has never, ever gone wrong.
All was going well until today when I downloaded their latest upgrade.
What I didn't know until I'd finished was that it had also infected my machine with something called Delta Toolbar, and equally as toxic, Browser Safeguard.
Together they completely buggered up my machine and it's taken me four hours to repair the damage.
Now I would never recommend that you don't use Clary - that would probably be slander, or is that libel?