Interesting information. I can think of no reason why approximately 250,000 files, named such as 00d8869c615168b2_0, should be allowed to accumulate in a directory. CCleaner feels compelled to recurse that directory, apparently examining the contents, yet doing nothing with them. And because that directory was examined, CCleaner was taking nearly five times as long to complete a clean-up. With that directory cleaned, CCleaner takes virtually no time at all performing a clean-up after closing Google Chrome. In addition, CCleaner performed so well for me I never needed to include a specific directory for cleaning. Frankly, I forgot the capability was there. Thank you for the suggestion. I will see if that works for me.