This is one of the main reasons that I started using CC but for some reason it has stopped working. After running the cleaner I get no errors or warnings , however, browser history has not been deleted. I'm using the latest and greatest version of CC. Could be a CC bug but seems so fundamental I doubt it. I suspect a third party program or virus but nothing shows up in virus or malware scans ?
os
browser
is the browser closed (checked processes before running ccleaner)
screen shots of proof of before after can some times help