Ccleaner - the best free cleaner

Ccleaner is free system junk file cleaner which cleans temporary files, Internet explore cookies and temp files, clears history and also removes firefox cookies, history and temporary files. It also removes invalid registry entries. Thus it speeds up system. I also use Desktop Maestro by PC tools. Desktop maestro does a good job at deleting invalid entries from registry but when it comes to cleaning of Junk files, Ccleaner is on top. Ccleaner searches more locations than other cleaners and hence it is able to delete more unwanted files. I have been using Ccleaner for One year or so and till Ccleaner only optimized my system but it never created any problems by deleting system related files. Overall Ccleaner is best free system optimizer. Ccleaner also comes in paid version. The paid version only has some advantages over free version. Pro version is much more powerful and it takes cleaning to the memory level and frees up more memory and more space with which the system can perform much more efficiently.