I presently have v. 2.17.853 CCleaner installed. Recently I downloaded Trend Micro anti-virus/firewall software, and decided to uninstall it, I ran CCleaner after to clean-up, but it didn't remove icons or some of the driver files. I also uninstalled an application called Paretologic, and periodically I get an error message saying that a driver from that application cannot be found. I am a long time user of Cleaner and have never had this problem in the past, any suggestions why these trace files are not being deleted?